https://community.bluebeam.com/bluebeam-community/discussion/1498/call-ua-1-888-829-1117-how-late-can-i-cancel-a-united-flight/p1?new=1

https://community.bluebeam.com/bluebeam-community/discussion/1281/united-policy-%EF%B8%8F-1-888-829-1117-what-is-uniteds-cancellation-policy-for-any-help/p1?new=1

https://community.bluebeam.com/bluebeam-community/discussion/1001/1-855-738-4113-how-do-i-pick-my-seat-on-american-airlines/p1?new=1

https://www.honor.com/globalgm/club/topicdetail/topicid-3624183508729857/

https://www.honor.com/globalgm/club/topicdetail/topicid-3624180446822401/

https://www.devex.com/people/aa-guide-american-airlines-seat-selection-what-to-know-2003192

https://www.honor.com/globalgm/club/topicdetail/topicid-3624176707600385/

https://ideas.salesforce.com/s/idea/a0B8W00000QebOFUAZ/expediarefundcancellation-what-is-expedias-cancellation-policy-

https://ideas.salesforce.com/s/idea/a0B8W00000QebN7UAJ/expediarefundcancellation-what-is-expedias-cancellation-policy-

https://ideas.salesforce.com/s/idea/a0B8W00000Qeb88UAB/cancellation-refundwhat-is-expedias-return-policy-