https://www.devex.com/people/experts-what-i-the-cancellation-policy-of-delta-airline-2443421
https://www.devex.com/people/how-clo-e-to-departure-can-i-cancel-a-flight-with-delta-help-2443439
https://www.devex.com/people/can-i-get-a-refund-on-my-frontier-flight-if-i-cancel-within-hours-2444819
https://www.devex.com/people/how-do-i-communicate-with-a-real-person-at-american-airlines-2441615
https://www.devex.com/people/reach-out-to-a-live-person-at-american-airlines-2441628