https://collaboratory.gse.upenn.edu/sites/default/files/webform/full-list-of-alaska-airlines-customer-usa-direct-contact-numbers-live-all-in-guide%20%281%29.pdf https://collaboratory.gse.upenn.edu/sites/default/files/webform/A-list-of-official-southwest-airlines%C2%AE-customer-service-contact-numbers%20%281%29.pdf https://collaboratory.gse.upenn.edu/sites/default/files/webform/A-list-of-official-qatar-airways%C2%AE-customer-service-contact-numbers%20%281%29.pdf https://collaboratory.gse.upenn.edu/sites/default/files/webform/A-list-of-official-air-canada%C2%AE-customer-service-contact-numbers%20%281%29.pdf https://collaboratory.gse.upenn.edu/sites/default/files/webform/A-list-of-official-qatar-airways%C2%AE-customer-service-contact-numbers.pdf https://collaboratory.gse.upenn.edu/sites/default/files/webform/A-list-of-official-qatar-airways%C2%AE-customer-service-contact-numbers_0.pdf