https://www.entmasterclass.com/forum/general-discussion/como-hablo-con-una-persona-en-american-airlines-1
https://www.entmasterclass.com/forum/general-discussion/801-855-59-05-what-is-the-latam-cancellation-policy
https://central.xero.com/s/question/0D58V00009OOwX4SAL/call-unitedhow-late-can-you-cancel-a-refundable-united-flight
https://www.entmasterclass.com/forum/general-discussion/united-801-855-59-05-what-is-fully-refundable-on-united-ask-now-1