https://urbanedjournal.gse.upenn.edu/sites/default/files/webform/Complete-List-Of-Alaska-Airlines-Official-Customer-Service.pdf https://urbanedjournal.gse.upenn.edu/sites/default/files/webform/Complete-List-Of-British-Airways-Official-Customer-Service.pdf https://urbanedjournal.gse.upenn.edu/sites/default/files/webform/Complete-List-Of-Etihad-Airways-Official-Customer-Service.pdf https://urbanedjournal.gse.upenn.edu/sites/default/files/webform/Complete-List-Of-Frontier-Airlines-Official-Customer-Service.pdf https://urbanedjournal.gse.upenn.edu/sites/default/files/webform/Complete-List-Of-Hawaiian-Airlines-Official-Customer-Service.pdf https://urbanedjournal.gse.upenn.edu/sites/default/files/webform/Complete-List-Of-Latam-Airlines-Official-Customer-Service.pdf https://urbanedjournal.gse.upenn.edu/sites/default/files/webform/Complete-List-Of-Lufthansa-Airlines-Official-Customer-Service.pdf https://urbanedjournal.gse.upenn.edu/sites/default/files/webform/Complete-List-Of-Qatar-Airways-Official-Customer-Service.pdf https://urbanedjournal.gse.upenn.edu/sites/default/files/webform/Complete-List-Of-Southwest-Airlines-Official-Customer-Service.pdf https://urbanedjournal.gse.upenn.edu/sites/default/files/webform/Complete-List-Of-Turkish-Airlines-Official-Customer-Service.pdf