상황
Personal Itinerary Optimizer for the PlanIt Go system.
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01
Optimize Itinerary extends Create Trip as an optional feature, declared via extension point.
02
Booking flows (Book Accommodation, Book Transportation) include Make Payment, which interacts with the Payment Gateway.
03
Search Destinations includes Get Recommendations to enrich the user experience.
When modeling a travel planning application that integrates external services for bookings and payments, with optional itinerary optimization.