An AI-powered travel planning system that automatically researches destinations, finds flights and hotels, and creates personalized day-by-day itineraries with budget optimization. Built with LangGraph for multi-agent orchestration and AWS Bedrock for intelligent decision-making.

This is a modern travel planning system using:

• LangGraph for agent orchestration
• AWS Bedrock (Claude models) for LLM
• 3-Agent Architecture: Research & Discovery, Booking & Logistics, Planning & Optimization

1. Install dependencies:

pip install -r requirements.txt

1. Research & Discovery Agent - Researches tourist attractions, restaurants, and local culture using free search APIs to gather comprehensive destination information.

   • Searches for attractions and restaurants
   • Uses: DuckDuckGo, Wikipedia
   • Output: Comprehensive destination research

2. Booking & Logistics Agent - Searches and recommends flights and hotels, coordinating timing and preferences to find the best travel options.

   • Finds flights and hotels
   • Uses: fast-flights, Kayak scraping
   • Output: Flight and hotel recommendations

3. Planning & Optimization Agent - Creates detailed day-by-day itineraries with realistic scheduling and budget optimization based on research and booking data.

   • Creates day-by-day itinerary
   • Optimizes budget
   • Uses: DuckDuckGo for timing info
   • Output: Complete itinerary with budget breakdown

Research & Discovery → Booking & Logistics → Planning & Optimization → END

from models.travel_plan import TravelPlanRequest, TravelPlanAgentRequest
from services.plan_service import generate_travel_plan

# Create request
travel_plan = TravelPlanRequest(
    destination="Paris",
    starting_location="New York",
    duration=5,
    # ... other fields
)

request = TravelPlanAgentRequest(
    trip_plan_id="trip-001",
    travel_plan=travel_plan
)

# Generate plan
result = await generate_travel_plan(request)

• DuckDuckGo: Web search
• Wikipedia: Destination information
• BeautifulSoup: Web scraping
• fast-flights: Flight search
• Kayak: Hotel search via scraping

• Bedrock: LLM
• S3: Caching
• Lambda: Serverless functions
• CloudWatch: Logging
• DynamoDB: Database