Activity
- https://www.devex.com/people/get_main-infor_mation__what-is-the-cancellation-policy-for-united-airlines-2278945
- https://www.devex.com/people/yes-getback-can-i-get-a-refund-with-southwest-if-i-cancel-within-hours-2278901
- https://community.hologram.io/t/what-is-the-cancelation-policy-for-united-airlines/26943
