https://officialamericanairline.helpsite.com/articles/132254-ways-to-call-american-airlines-customer-service-by-phone-chat-and-email-an-explained-guide
https://official-american-airlines-hub.helpsite.com/articles/132255-ways-to-contact-american-airlines-customer-service-directly-via-phone-email-or-chat-options-step-by-step-a-explained-guide
https://official-expediausa.helpsite.com/articles/132252-ways-to-call-expedia-customer-service-directly-via-phone-email-or-chat-options-step-by-step-a-explained-guide
https://community.youth4climate.info/discussion/ways-call-expedia-customer-service-directly-phone-email-or-chat-options-step-step