https://aircanadacustomerservice.stonly.com/kb/guide/en/ways-to-contact-air-canada-customer-service-by-phone-chat-and-email-step-by-step-guide-f9hrLaWWTt/Steps/4214330
https://aircanadacustomerservice.stonly.com/kb/guide/en/ways-to-contact-air-canada-customer-service-by-phone-chat-and-email-step-by-step-guide-CRGIYWXghp/Steps/4214353
https://deltahelp.stonly.com/kb/guide/en/ways-to-contact-delta-airlines-customer-service-by-phone-chat-and-email-step-by-step-guide-7y2TkDbKFj/Steps/4214254
https://deltahelp.stonly.com/kb/guide/en/ways-to-call-delta-customer-service-by-phone-chat-and-email-step-by-step-guide-nk2YGGIqYL/Steps/4214286