https://support.us.edu/hc/en-us/community/posts/26956748701591–AA-How-Can-I-Get-in-Touch-with-American-Airlines-fast
https://www.devex.com/people/f-a-q-lufthansa-does-lufthansa-offer-free-cancellation-2013456 devex.com
https://support.us.edu/hc/en-us/community/posts/26956748701591–AA-How-Can-I-Get-in-Touch-with-American-Airlines-fast support.us.edu