https://collaboratory.gse.upenn.edu/sites/default/files/webform/how-to-speak-to-a-real-person-at-expedia.pdf

https://spanishofficialhelp.zohodesk.com/portal/en/kb/articles/c%C3%B3mo-hablar-con-un-agente-de-expedia-en-espa%C3%B1ol-6-7-2025-2

https://nch.invisionzone.com/topic/87578-two-ways-to-talk-to-speak-live-agent-at-expedia-a-quick-guide/

https://nch.invisionzone.com/topic/87575-55-ways-to-contact-qatar-airlines-phone-number-chat-support-email-help-guide/

Ｈｏｗ　Ｄｏ　Ｉ　Ｓｐｅａｋ　Ｔｏ　Ｓｏｍｅｏｎｅ　ａｔ　ＥＸＰＥＤＩＡ®　Ｒｅｓｅｒｖａｔｉｏｎ　Ｎｕｍｂｅｒ：　Ａ　Ｆｕｌｌ　Ｇｕｉｄｅ

https://intercom.help/agregar-infante/en/articles/11719408-25-como-contactar-a-un-humano-en-westjet-por-telefono-chat-o-correo-electronico-guia-de-ayuda-completa

https://nch.invisionzone.com/topic/87543-12-ways-to-talk-to-someone-at-united-via-phone-email-or-chat-options-a-step-by-step-guide/

https://nch.invisionzone.com/topic/87573-how-to-reach-a-live-agent-at-expedia-support-contact-guide/

https://intercom.help/agregar-infante/en/articles/11719407-como-hablar-directamente-con-westjet-airlines

https://nch.invisionzone.com/topic/87574-24-ways-to-contact-qatar-airlines-support-speak-to-a-live-person-instantly/