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- https://www.devex.com/people/oficial-aa-como-hablar-con-una-persona-en-merican-airlines-2309059
- https://www.devex.com/people/laenjoy_cancellation-what-is-the-24-hour-rule-for-lufthansa_guide-2309087
- https://www.devex.com/people/what-is-the-24-hour-rule-for-lufthansa_-fast-and-best-2309108
- https://www.devex.com/people/delta-policy-what-is-the-cancellation-policy-of-delta-airlines-2309114
