portfolio/6652-plan-travel-itineraries-with-gemini-ai-live-amadeus-flights-and-airbnb-stays

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Personal ProductivityAI Chatbot7 nodes

Plan travel itineraries with Gemini AI, live Amadeus flights, and Airbnb stays

This workflow contains community nodes that are only compatible with the self-hosted version of n8n.

Use in n8n (Official Template)Book Architecture Call

Integrated Nodes & Architecture (7)

[—]Workflow Documentation & Overview

This workflow contains community nodes that are only compatible with the self-hosted version of n8n.

#Here is the Full Node-by-Node Breakdown of the workflow Workflow

Execution Video: https://youtu.be/qkZ6UaO7aCE

#1. Webhook (`Webhook`)

▪Purpose: Accepts incoming user queries via HTTP GET with the text parameter.
▪Example input: 4 people from Germany to Bangkok @14th August 2025

#2. AI Agent (`AI Agent`)

▪Type: LangChain Agent
▪Model: Google Gemini 2.5 Flash via Vertex AI
▪Prompt logic:

▪Extracts structured travel info (origin city, destination, date, number of people)
▪Determines 3-letter IATA codes
▪Uses MCP’s Airbnb Tool to scrape listings starting from that date
▪Returns:

▪A markdown + bullet-format response with:

▪Structured trip info
▪List of Airbnb listings with titles, price, rating, and link

#3. MCP Client List Tool (`MCP Client List Tool`)

▪Purpose: Fetches a list of tools registered with MCP (Multi Channel Parser) client for the AI agent to select from
▪Used by: AI Agent as part of listTools() phase

#4. MCP Execute Tool (`MCP Execute Tool`)

▪Purpose: Executes the selected MCP tool (Airbnb scraper)
▪Tool input: Dynamic — passed by AI Agent using $fromAI('Tool_Parameters')

#5. Google Vertex Chat Model (`Google Vertex Chat Model`)

▪Purpose: Acts as the LLM behind the AI Agent
▪Model: Gemini 2.5 Flash from Vertex AI
▪Used for: Language understanding, extraction, decision-making

#6. Grabbing Clean Data (`Code Node`)

▪Purpose: Parses AI output to extract:

▪Structured trip data
▪Airbnb listings (with title, rating, price, link)
▪Handles:

▪Bullet (•) and asterisk (\*) formats
▪New and old markdown styles
▪Fallbacks for backward compatibility
▪Output: Clean JSON:

json

  {
    "tripInformation": {...},
    "listings": [...],
    "totalListings": X,
    ...
  }

#7. Flight Search with fare (`HTTP Request`)

▪API: Amadeus Flight Offers API
▪Purpose: Searches live flight offers using:

▪originIataCode
▪destinationIataCode
▪travelDate
▪numberOfPeople
▪Auth: OAuth2

#8. Flight Data + Airbnb Listings (`Code Node`)

▪Purpose:

▪Parses Amadeus flight offers
▪Formats date, time, and durations
▪Merges flight results with earlier Airbnb + trip info JSON
▪Sorts by cheapest total price
▪Output:

json

  {
    "tripInformation": {...},
    "listings": [...],
    "allFlightOffers": [...]
  }

#9. Edit Fields (`Set Node`)

▪Purpose:

▪Assigns final response fields into clean keys:

▪traveldetails
▪listings
▪flights

#10. Respond to Webhook

▪Purpose: Sends back the final structured JSON response to the caller.
▪Output: Combined travel itinerary with flights + Airbnb

#Summary

This end-to-end workflow is a fully autonomous travel query-to-itinerary engine. From a plain text like “4 people from Vijayawada to Bangkok @14th August 2025,” it: