https://support.google.com/edu/classroom/thread/326971193?hl=en&sjid=4729884900473826854-NC

https://support.google.com/edu/classroom/thread/326969867?hl=en&sjid=6318106716447575151-NC

https://patch.com/california/unioncity/calendar/event/20250228/7f74df69-6a65-4460-8ff4-74b664ce9443/faqs-help-is-there-a-grace-period-for-expedia-and-does-expedia-allow-free-cancellation

https://www.goodreads.com/topic/show/23046238-c-mo-pedir-un-reembolso-en-expedia-contacto

https://philpeople.org/profiles/1-888-331-3976-what-is-the-senior-discount-age-for-southwest-airlines

https://support.google.com/edu/classroom/thread/326970632?hl=en&sjid=18066546220175768089-NC

https://myagileplm.com/question/%e2%84%9a%f0%9d%95%a6%f0%9d%95%96%f0%9d%95%a4how-do-i-know-if-my-united-economy-ticket-is-refundable/

https://patch.com/california/unioncity/calendar/event/20250225/2532e398-1360-420a-a2d2-cfa3eb21386c/understanding-cheapflight-what-day-is-american-airlines-cheapest-to-buy

https://support.google.com/edu/classroom/thread/326970169?hl=en&notify=new&sjid=6318106716447575151-NC

https://patch.com/california/unioncity/calendar/event/20250228/1907dba4-db73-4676-a530-6831fb2664fd/does-expedia-allow-free-cancellation-expedia-agent-gt