https://cris.unu.edu/sites/cris.unu.edu/files/webform/ten-ways-to-speak-with-jetblue-airlines-live-support-call-chat-email-guide.pdf
https://cris.unu.edu/sites/cris.unu.edu/files/webform/twenty-six-ways-to-speak-to-live-agent-at-hawaiian-airlines-a-quick-guide.pdf
https://www.hipertrofia.org/forum/topic/267474-c%C3%B3mo-obtener-asistencia-en-vivo-de-delta-airlines-por-tel%C3%A9fono/
https://regions-and-cities.europa.eu/sites/default/files/webform/multimedia_center/_sid_/persona-AA-%C2%BFcomo-hablar-con-una-persona-en-american-airlines.pdf