https://www.devex.com/people/argentina-telefono-como-llamar-a-american-airlines-desde-argentina-2031543
https://dojour.us/e/34443-american-airline-telefono-guia-rapida-como-hablo-con-un-agente-de-american-airline
https://community.lumivero.com/s/question/0D5Jw00000dQ1QbKAK/how-long-do-you-have-to-cancel-with-frontier