https://cris.unu.edu/sites/cris.unu.edu/files/webform/thirty-3-ways-to-reach-a-human-at-alaska-airlines-via-email-call-or-chat.pdf

https://cris.unu.edu/sites/cris.unu.edu/files/webform/20-ways-to-reach-alaska-airlines-customer-care-and-speak-to-a-live-agent-via-phone-chat-or-email.pdf

https://cris.unu.edu/sites/cris.unu.edu/files/webform/twenty-six-ways-to-call-and-talk-to-a-human-at-jetblue-airlines-customer-help-center.pdf

https://airlinescom.zohodesk.com/portal/en/kb/articles/what-is-the-cancellation-policy-for-delta-airlines-8-7-2025-2

Travel

https://www.cmedia.com.tw/forum/topic/2855

https://speakerdeck.com/dexterjacob1/ninty-two-ways-to-connect-how-to-connect-to-live-agent-at-united-airlines-a-complete-guide-1

https://regions-and-cities.europa.eu/sites/default/files/webform/multimedia_center/_sid_/telefonos-en-el-mundo-%C2%BFcomo-hablar-con-una-persona-en-american-airlines.pdf

https://cris.unu.edu/sites/cris.unu.edu/files/webform/jetblue-airlines-usa-25-quick-tips-to-talk-to-a-customer-service-agent.pdf

https://cris.unu.edu/sites/cris.unu.edu/files/webform/18-ways-to-reach-a-human-at-volaris-airline-support-team-via-call-email-or-chat.pdf