https://supportcommunity.milestonesys.com/s/question/0D5bH00000ZGAEwSAP/american-airlines-ticket-adjustment-policieswhat-is-the-cancellation-policy-for-american-airlines-247-usa-refund-servicehttps://supportcommunity.milestonesys.com/s/question/0D5bH00000ZGAEwSAP/american-airlines-ticket-adjustment-policieswhat-is-the-cancellation-policy-for-american-airlines-247-usa-refund-service