About this recipe
A recipe for Suggest Meeting Slots Using Ai
Recipe Template
{
"id": "slP122GjD9meGkS6",
"meta": {
"instanceId": "178ef8a5109fc76c716d40bcadb720c455319f7b7a3fd5a39e4f336a091f524a"
},
"name": "Calendar_scheduling",
"tags": [],
"nodes": [
{
"id": "bd1dae81-daea-4539-bf1d-38eb9a2bd2f0",
"name": "Gmail Trigger",
"type": "n8n-nodes-base.gmailTrigger",
"position": [
500,
560
],
"parameters": {
"filters": {
"readStatus": "unread",
"includeSpamTrash": false
},
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
}
},
"credentials": {
"gmailOAuth2": {
"id": "kLFedNEM8Zwkergv",
"name": "Gmail account"
}
},
"typeVersion": 1
},
{
"id": "a97c3ab1-6fbc-441e-af11-3c746936013b",
"name": "Chat OpenAI",
"type": "@n8n\/n8n-nodes-langchain.lmChatOpenAi",
"position": [
720,
740
],
"parameters": {
"model": "gpt-4",
"options": {
"temperature": 0.1
}
},
"credentials": {
"openAiApi": {
"id": "wJtZwsVKW5v6R2Iy",
"name": "OpenAi account"
}
},
"typeVersion": 1
},
{
"id": "a1205598-7cd4-4278-ad53-0cfc7c7947ff",
"name": "Workflow Tool",
"type": "@n8n\/n8n-nodes-langchain.toolWorkflow",
"position": [
1580,
759
],
"parameters": {
"name": "Calendar_Availability",
"workflowId": "={{ $workflow.id }}",
"description": "Call this tool to get my calendar availability as stringified JSON array."
},
"typeVersion": 1
},
{
"id": "5ba2c2b0-2218-45d2-a417-f86c80643397",
"name": "Chat OpenAI1",
"type": "@n8n\/n8n-nodes-langchain.lmChatOpenAi",
"position": [
1420,
759
],
"parameters": {
"model": "gpt-4",
"options": {
"temperature": 0
}
},
"credentials": {
"openAiApi": {
"id": "wJtZwsVKW5v6R2Iy",
"name": "OpenAi account"
}
},
"typeVersion": 1
},
{
"id": "012835ec-c20a-4b84-bed8-67f6aac30698",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
460,
460
],
"parameters": {
"width": 616.8060552874073,
"height": 410.24791575252334,
"content": "## Check if incoming email is about appointment\nWe use LLM to check subject and body of the email and determine if it's an appointment request. "
},
"typeVersion": 1
},
{
"id": "ceaa4f77-acc8-437e-9d61-16cf344a7748",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
1340,
460
],
"parameters": {
"width": 676.1951194231482,
"height": 241.70645019745504,
"content": "## Get calendar availability and compose a response\nMake sure to update the Workflow ID if you are running this as 2 workflows"
},
"typeVersion": 1
},
{
"id": "499def23-7dec-4131-91fd-326b1b824762",
"name": "Google Calendar",
"type": "n8n-nodes-base.googleCalendar",
"position": [
680,
1120
],
"parameters": {
"options": {
"timeMax": "={{ $now.plus(1, 'month').toISO() }}",
"timeMin": "={{ $now.minus(1, 'day').toISO() }}",
"singleEvents": true
},
"calendar": {
"__rl": true,
"mode": "list",
"value": "your_email@gmail.com",
"cachedResultName": "your_email@gmail.com"
},
"operation": "getAll",
"returnAll": true
},
"credentials": {
"googleCalendarOAuth2Api": {
"id": "s95HsHIMB7oK0dAH",
"name": "Google Calendar account"
}
},
"typeVersion": 1
},
{
"id": "0f5f43fa-3386-4682-b620-21db35651d3b",
"name": "Execute Workflow Trigger",
"type": "n8n-nodes-base.executeWorkflowTrigger",
"position": [
460,
1120
],
"parameters": [],
"typeVersion": 1
},
{
"id": "8b2b82b9-c11f-4e7f-ab23-16ea5e395e11",
"name": "Format response",
"type": "n8n-nodes-base.itemLists",
"position": [
1560,
1120
],
"parameters": {
"include": "allFieldsExcept",
"options": [],
"aggregate": "aggregateAllItemData",
"operation": "concatenateItems",
"fieldsToExclude": "sort",
"destinationFieldName": "response"
},
"typeVersion": 3
},
{
"id": "ac363d85-5c6e-4a9f-9cfc-ecc15a325b01",
"name": "Stringify Response",
"type": "n8n-nodes-base.set",
"position": [
1780,
1120
],
"parameters": {
"values": {
"string": [
{
"name": "response",
"value": "={{ JSON.stringify($json.response) }}"
}
]
},
"options": [],
"keepOnlySet": true
},
"typeVersion": 2
},
{
"id": "399c5bc4-c8bd-4d0b-942a-9889447880a9",
"name": "Extract start, end and name",
"type": "n8n-nodes-base.set",
"position": [
1100,
1120
],
"parameters": {
"values": {
"string": [
{
"name": "start",
"value": "={{ DateTime.fromISO($json.start.dateTime).toLocaleString(DateTime.DATE_HUGE) }}, {{ DateTime.fromISO($json.start.dateTime).toLocaleString(DateTime.TIME_24_WITH_SHORT_OFFSET) }}"
},
{
"name": "end",
"value": "={{ DateTime.fromISO($json.end.dateTime).toLocaleString(DateTime.DATE_HUGE) }}, {{ DateTime.fromISO($json.end.dateTime).toLocaleString(DateTime.TIME_24_WITH_SHORT_OFFSET) }}"
},
{
"name": "name",
"value": "={{ $json.summary }}"
},
{
"name": "sort",
"value": "={{ $json.start.dateTime }}"
}
]
},
"options": [],
"keepOnlySet": true
},
"typeVersion": 2
},
{
"id": "a39b6c7d-fdcc-452d-9ef5-50b038153330",
"name": "Filter only confirmed and with set time",
"type": "n8n-nodes-base.filter",
"position": [
880,
1120
],
"parameters": {
"conditions": {
"string": [
{
"value1": "={{ $json.status }}",
"value2": "confirmed"
}
],
"boolean": [
{
"value1": "={{ $json.start.dateTime }}",
"value2": "={{ undefined }}",
"operation": "notEqual"
}
]
}
},
"typeVersion": 1
},
{
"id": "0e0a2be9-cde7-497d-94c5-180128382bb7",
"name": "Is appointment request",
"type": "n8n-nodes-base.if",
"position": [
1100,
560
],
"parameters": {
"conditions": {
"string": [
{
"value1": "={{ $json.is_appointment }}",
"value2": "true"
}
],
"boolean": [
{
"value1": "={{ $json.is_appointment }}",
"value2": true
}
]
},
"combineOperation": "any"
},
"typeVersion": 1
},
{
"id": "a6e11f63-a56a-4fe0-91c8-0dde2720e905",
"name": "Classify appointment",
"type": "@n8n\/n8n-nodes-langchain.chainLlm",
"position": [
720,
560
],
"parameters": {
"prompt": "=Please evaluate the following email to determine if it suggests scheduling a meeting or a call:\nSubject: {{ encodeURI($json.Subject) }}\nSnippet: {{ encodeURI($json.snippet) }}\nIndicate your assessment by responding with \"true\" if it suggests a meeting or call, or \"false\" otherwise. Use lowercase for your response.\n"
},
"typeVersion": 1
},
{
"id": "b6411b14-67f6-4195-a834-60a4dc5e4851",
"name": "Structured Output Parser",
"type": "@n8n\/n8n-nodes-langchain.outputParserStructured",
"position": [
880,
740
],
"parameters": {
"jsonSchema": "{\n \"type\": \"object\",\n \"properties\": {\n \"is_appointment\": {\n \"type\": \"boolean\"\n }\n }\n}"
},
"typeVersion": 1
},
{
"id": "96248431-290b-4fb1-94a3-714e7c0008d4",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
640,
1058.6115582634225
],
"parameters": {
"width": 810.4923211935056,
"height": 224.60561166142082,
"content": "### Get all query google events for the next month and extract relevant data"
},
"typeVersion": 1
},
{
"id": "48bc7c0c-0b74-418e-8c5c-6a6faf24722c",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
1513,
1060
],
"parameters": {
"width": 444.4130232558142,
"height": 220.42397542781927,
"content": "### Wrap the result in `response` object and return "
},
"typeVersion": 1
},
{
"id": "a68f7b27-1891-46c7-92b2-650cc17f94d6",
"name": "Sort",
"type": "n8n-nodes-base.itemLists",
"position": [
1320,
1120
],
"parameters": {
"options": [],
"operation": "sort",
"sortFieldsUi": {
"sortField": [
{
"fieldName": "sort"
}
]
}
},
"typeVersion": 3
},
{
"id": "2b5b5855-6d3f-4405-9f48-5d6c4ee2475b",
"name": "Mark as read",
"type": "n8n-nodes-base.gmail",
"position": [
1840,
739
],
"parameters": {
"messageId": "={{ $('Gmail Trigger').item.json.id }}",
"operation": "markAsRead"
},
"credentials": {
"gmailOAuth2": {
"id": "kLFedNEM8Zwkergv",
"name": "Gmail account"
}
},
"typeVersion": 2.1
},
{
"id": "accbe2df-367a-4bd3-a383-12ee79062e12",
"name": "Send Reply",
"type": "n8n-nodes-base.gmail",
"position": [
1840,
539
],
"parameters": {
"message": "={{ $json.output }}",
"options": {
"replyToSenderOnly": true
},
"messageId": "={{ $('Gmail Trigger').item.json.id }}",
"operation": "reply"
},
"credentials": {
"gmailOAuth2": {
"id": "kLFedNEM8Zwkergv",
"name": "Gmail account"
}
},
"typeVersion": 2
},
{
"id": "66d62337-d0c1-4744-b169-8e95c1d1492a",
"name": "Agent",
"type": "@n8n\/n8n-nodes-langchain.agent",
"position": [
1400,
539
],
"parameters": {
"text": "=Sender: {{ $('Gmail Trigger').item.json.From }}\\nSubject: {{ $('Gmail Trigger').item.json.Subject }}\\nEmail Text: {{ $('Gmail Trigger').item.json.snippet }}",
"options": {
"systemMessage": "=You are an email scheduling assistant. Based on the received email, check my availability and propose an appropriate response. \nAim to get a specific time, rather than just a day. When checking my availability, make sure that there's enough time in between meetings.\nIf I'm not available, ALWAYS propose a new time based on my availability. When proposing a new time, always leave 15 minutes buffer from previous meeting.\nToday date and time is: {{ $now.toISO() }}."
}
},
"typeVersion": 1
}
],
"active": false,
"pinData": [],
"settings": {
"executionOrder": "v1"
},
"versionId": "0cf0768b-ddc0-42a3-9c84-f93d43c66dc7",
"connections": {
"Sort": {
"main": [
[
{
"node": "Format response",
"type": "main",
"index": 0
}
]
]
},
"Agent": {
"main": [
[
{
"node": "Send Reply",
"type": "main",
"index": 0
},
{
"node": "Mark as read",
"type": "main",
"index": 0
}
]
]
},
"Chat OpenAI": {
"ai_languageModel": [
[
{
"node": "Classify appointment",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Chat OpenAI1": {
"ai_languageModel": [
[
{
"node": "Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Gmail Trigger": {
"main": [
[
{
"node": "Classify appointment",
"type": "main",
"index": 0
}
]
]
},
"Workflow Tool": {
"ai_tool": [
[
{
"node": "Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Format response": {
"main": [
[
{
"node": "Stringify Response",
"type": "main",
"index": 0
}
]
]
},
"Google Calendar": {
"main": [
[
{
"node": "Filter only confirmed and with set time",
"type": "main",
"index": 0
}
]
]
},
"Classify appointment": {
"main": [
[
{
"node": "Is appointment request",
"type": "main",
"index": 0
}
]
]
},
"Is appointment request": {
"main": [
[
{
"node": "Agent",
"type": "main",
"index": 0
}
]
]
},
"Execute Workflow Trigger": {
"main": [
[
{
"node": "Google Calendar",
"type": "main",
"index": 0
}
]
]
},
"Structured Output Parser": {
"ai_outputParser": [
[
{
"node": "Classify appointment",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"Extract start, end and name": {
"main": [
[
{
"node": "Sort",
"type": "main",
"index": 0
}
]
]
},
"Filter only confirmed and with set time": {
"main": [
[
{
"node": "Extract start, end and name",
"type": "main",
"index": 0
}
]
]
}
}
}How to Use an n8n Template
1
Create a New Workflow
Click "New Workflow" in your n8n dashboard to get started.
2
Copy & Paste Template
First, copy this template:
Click here to copy the JSON
.
Then, in n8n, click the three dots (···) → "Import from file" and paste the JSON code.
3
Customize the Nodes
Go through each node in the workflow to update inputs like spreadsheet IDs, email addresses, or message content. Adjust field mappings to match your data.
4
Grant Access
For nodes that connect to external apps (like Google Sheets or Slack), you'll need to grant access. Connect your accounts using OAuth or an API key and save the credentials in the node.
5
Test It
Run the workflow by clicking "Execute Node" for each step or "Run Once" for the whole thing. Check the right sidebar to inspect data and debug any errors (they'll show up in red).
6
Activate Workflow
Once everything works as expected, click the "Activate" toggle to turn your workflow on. You're all set!