https://epicflightacademy.com/aviation-forums/topic/60-ways-to-get-assistance-from-wizz-air-full-contact-guide-travel/#new-topic-0

https://epicflightacademy.com/aviation-forums/topic/60-ways-to-get-assistance-from-american-airlines-full-contact-guide-travel/#new-topic-0

https://epicflightacademy.com/aviation-forums/topic/60-ways-to-get-assistance-from-expedia-full-contact-guide-travel/#new-topic-0

https://collaboratory.gse.upenn.edu/sites/default/files/webform/two-ways-to-talk-to-speak-live-agent-at-expedia-a-quick-guide.pdf

https://collaboratory.gse.upenn.edu/sites/default/files/webform/how-to-reach-a-live-agent-at-expedia-support-contact-guide.pdf

https://collaboratory.gse.upenn.edu/sites/default/files/webform/7-ways-to-connect-how-do-i-speak-to-live-representative-at-expedia-a-step-by-step-guide.pdf

https://collaboratory.gse.upenn.edu/sites/default/files/webform/11-ways-to-reach-how-do-i-talk-to-a-live-person-at-expedia-a-comprehesive-guide.pdf

https://pressbooks.pub/namecorrection/part/speak-to-live-agent-at-united-airlines/

https://pantip.com/topic/43604974

https://pressbooks.pub/namecorrection/chapter/how-to-contact-american-airlines-customer-service-23-ways-to-reach-a-real-person/