AI Calendar Booking Assistant (n8n + GPT-4o + Google Calendar)

AI Calendar Booking Assistant (n8n + GPT-4o + Google Calendar)

Let an AI agent manage your calendar—check availability, book appointments, and chat with users… all hands-free.

This plug-and-play workflow builds an AI-powered appointment assistant that responds to chat messages, checks your calendar availability, and books 30-minute meetings—all via Google Calendar.

Built inside n8n using GPT-4o Mini, LangChain tools, and real-time memory, it’s ideal for solopreneurs, consultants, agencies, or internal teams who want an AI scheduler working 24/7.

What It Does:

1. Chat Trigger Starts the Flow
   
   • Activated by incoming messages from a user
   • Ideal for use with a WhatsApp or web-based chat interface
2. 
   
3. GPT-4o-Powered AI Agent
   
   • Understands the user’s request (e.g. “Can I book a slot on Friday?”)
   • Handles small talk and understands time zones & context
   • Only proceeds to booking if a slot is available
4. 
   
5. Checks Google Calendar Availability
   
   • Uses real-time free/busy API
   • Reads from a specified calendar (e.g. mygptworkshop@gmail.com)
   • Filters by time range, returns availability as “Free” or “Busy”
6. 
   
7. Books a 30-Minute Meeting Automatically
   
   • Posts directly to your Google Calendar
   • Creates an event with summary, start/end time, and attendee emails
   • Always sets the event in Pacific Time (California, USA)
8. 
   
9. Remembers the Conversation
   
   • Powered by Window Buffer Memory
   • Enables back-and-forth chat with context retention
   • Agent acts like a real assistant with consistency and clarity
10. 
    

What You Get:

• Ready-to-import n8n JSON file
• Fully connected agent with memory, tools, and chat logic
• Google Calendar integrations (availability check + event booking)
• LangChain agent configured with system message + tool routing
• Timezone-aware, rule-based flow designed for real-world use

Who It’s For:

• Consultants or coaches offering 1:1 sessions
• Agencies handling demo calls or sales meetings
• SaaS founders automating onboarding appointments
• Anyone who wants an AI-powered receptionist

Requirements:

• n8n account
• Google Calendar account with OAuth
• OpenAI API key (GPT-4o or GPT-4)
• Optional: WhatsApp, Typebot, or chatbot UI to trigger messages

Price:

Setup Time: ~25 minutes

Support: only with paid

Download the AI Calendar Booking Assistant now

and let your calendar fill itself—no human needed.