TUI Cruise OTA Booking APIs v1.0
Cruise booking flow for OTA partners, documented as three sequential operations — Validate Holiday (validates the booking with customer and travel details and returns the latest prices) at /cruise-ota-book/validate-holiday, Checkout Holiday (reserves inventory for a fixed period) at /cruise-ota-book/checkout-holiday, and Confirm Holiday (creates the booking) at /cruise-ota-book/confirm-holiday.