https://www.devex.com/people/what-is-the-cancellation-policy-for-american-airlines-customer-service-faqs-1997075
https://www.devex.com/people/can-i-cancel-a-and-get-a-refund-on-flight-american-airlines-helpline-1997076
https://www.devex.com/people/is-american-airlines-refund-policy-support-helpline-1997086