https://www.transfermarkt.com/-a-a-policy-what-is-the-cancellation-policy-for-american-airlines-/thread/forum/696/thread_id/34059/page/1#anchor_34401
https://www.transfermarkt.com/-a-a-policy-what-is-the-cancellation-policy-for-american-airlines-/thread/forum/696/thread_id/34059/page/1#anchor_34401
https://www.transfermarkt.com/-a-a-policy-what-is-the-cancellation-policy-for-american-airlines-/thread/forum/696/thread_id/34059/page/1#anchor_34401