https://www.wyomilitary.wyo.gov/wp-content/uploads/formidable/14/e-x-p-e-dia-usa-customer-service-full-step-by-step-guide.pdf

https://education.aaaai.org/sites/default/files/webform/complete-list-of-official-expedia-customer-contact-numbers-in-the-usa-the-ultimate-detailed-guide.pdf

https://www.thefreshloaf.com/node/77309/16-ways-talk-live-united-airlinesr-agent-step-step-help

https://chandoo.org/forum/threads/call-agent-bookings-what-is-the-easiest-way-to-book-a-flight-on-united-airlines.60504/

https://chandoo.org/forum/threads/20-twenty-proven-ways-to-talk-to-southwest-airlines%C2%AE%EF%B8%8F-live-agent-%E2%80%93-step-by-step.60407/

https://discuss.tindie.com/t/full-list-of-air-canada-customer-care-contact-numbers-in-usa-the-official-guide/533985

https://educativ.net/forums/topic/39651-complete-list-of%E2%84%A2%EF%B8%8F-delta%C2%AE-support%E2%84%A2%Ev%B8%8F-contact-numbers-in-the-usa%C2%AE%C2%AE%EF%B8%8F-%E2%80%93-the-ultimate-official-guide/

https://educativ.net/forums/topic/39643-20twenty-proven-ways-to-talk-to-southwest-airlines%C2%AE%EF%B8%8F-live-agent-%E2%80%93-step-by-step/

https://educativ.net/forums/topic/39540-08eight-best-ways-to-contact-southwest-airlines%C2%AE%EF%B8%8F-customer-support-%E2%80%93-guide/

http://linode.mono.ca.gov/breezebookingpolicy-does-breeze-have-cancellation-fee