https://forum.dimensionengineering.com/topic/3002-79-way-to-call-southwest-without-waiting-on-hold-for-hours-and-get-a-faster-response-from-support/
https://forum.dimensionengineering.com/topic/3260-11-ways-to-reach-air-canada-customer-service-by-phone-chat-and-email-an-ultimate-guide/
https://www.fodors.com/community/air-travel/can-you-cancel-and-get-a-refund-on-delta-1729916/#post17645333
