https://community.servicetitan.com/t5/General/24-7-Free-Cancellaton-Does-Southwest-have-free-cancellation/m-p/65279#M7894
https://community.servicetitan.com/t5/General/24-7-Free-Cancellaton-Does-Southwest-have-free-cancellation/m-p/65279#M7894
https://community.servicetitan.com/t5/General/24-7-Free-Cancellaton-Does-Southwest-have-free-cancellation/m-p/65279#M7894