https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/ComohablarconunagentedeFrontier.pdf
https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/Como-hablo-com-un-representantede-Frontier.pdf
https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/10-steps-to-connect-with-air-canada-airlines-support-a-complete-guide.pdf