https://support.opendns.com/hc/en-us/community/posts/32245386650388--SOUTHWEST-Does-Southwest-have-a-24-hour-cancellation-policy
https://support.opendns.com/hc/en-us/community/posts/32245386650388--SOUTHWEST-Does-Southwest-have-a-24-hour-cancellation-policy
https://support.opendns.com/hc/en-us/community/posts/32245386650388--SOUTHWEST-Does-Southwest-have-a-24-hour-cancellation-policy
https://support.opendns.com/hc/en-us/community/posts/32245386650388--SOUTHWEST-Does-Southwest-have-a-24-hour-cancellation-policy