https://answers.microsoft.com/en-us/msoffice/forum/all/what-is-airlines-cancellation-policy-travelsupport/eab7e1bd-173f-4196-92db-f31e7a5e64b0
https://answers.microsoft.com/en-us/msoffice/forum/all/what-is-airlines-cancellation-policy-travelsupport/eab7e1bd-173f-4196-92db-f31e7a5e64b0
https://answers.microsoft.com/en-us/msoffice/forum/all/what-is-airlines-cancellation-policy-travelsupport/eab7e1bd-173f-4196-92db-f31e7a5e64b0