https://developer-community.sage.com/topic/3991-expedia~detailed~guide-can-i-cancel-my-trip-on-expedia-and-get-a-refund-zero-charge-cancel-flight/

https://developer-community.sage.com/topic/3991-expedia~detailed~guide%E2%84%A2-can-i-cancel-my-trip-on-expedia-and-get-a-refund-zero-charge-cancel-flight/