https://support.cgu.edu/hc/en-us/community/posts/32092007346580–Delta-Cancellation-Rule-Does-Delta-have-a-cancellation-policy-Need-to-Change
https://support.cgu.edu/hc/en-us/community/posts/32092007346580–Delta-Cancellation-Rule-Does-Delta-have-a-cancellation-policy-Need-to-Change