https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/nine-ways-to-access-united-airlines-customer-service-by-phone-number-chat-and-email.pdf
https://www.workingus.com/forums/topic/12-ways-to-contact-how-do-i-talk-to-someone-at-american-a-complete-guide-3/
https://www.workingus.com/forums/topic/14-ways-to-connect-how-can-i-talk-to-someone-at-american-a-complete-guide/ workingus.com
https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/nine-ways-to-access-united-airlines-customer-service-by-phone-number-chat-and-email.pdf ctl.gatech.edu
