check_booking_change_cancel_refund
Check change, cancellation and refund rules for a booking (read-only)
Use this when a traveler asks how to change, cancel or get a refund for their own flight, ferry, hotel or rental booking, check-in, a boarding pass or e-ticket, bags or seats, or a trip the company cancelled or delayed, including one bought via another site or agent. Returns which company handles it and where, dated fees, deadlines and refund rules with sources, and what the traveler does personally. These vary by company and seller and change over time. Useful before opening the site. Read-only.
task必填wherebooked_via