Https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/How-to-Contact-United-Airlines-Customer-Service-1-877-245-9984.pdf https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/How-to-Contact-United-Airlines-Customer-Service-1-877-245-9984.pdf https://ctl.gatech.edu/sites/default/files/webform/teaching_with_techno... https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/How-to-Contact-United-Airlines-Customer-Service-1-877-245-9984.pdf