https://thwarts.cee.illinois.edu/files/2025/06/five-ways-to-speak-to-a-live-agent-at-united-airlines-contact-options-explained-a-complete-stepb-ystep-guide.pdf
https://poultrykeeperforum.com/threads/%C2%BFc%C3%B3mo-puedo-comunicarme-con-frontier-en-espa%C3%B1ol.13919/
https://www.goodreads.com/quotes/12994493-bookings-refences-does-latam-have-a-24-hour-cancellation-policy-latam-offers
https://thwarts.cee.illinois.edu/files/2025/06/how-to-get-real-time-support-from-lufthansa-airlines-call-a-live-agent-now.pdf