https://support.google.com/edu/classroom/thread/335060200?hl=en&sjid=17713876241309622107-NC

https://patch.com/california/losgatos/calendar/event/20250402/dccbdd5e-c4b7-4c24-bc2e-0fc95b4df46e/airline-pricing-what-day-is-the-best-day-to-buy—tickets

https://support.google.com/edu/classroom/thread/335068392?hl=en&sjid=3047737480689463590-NA

https://intercom.help/expedia-76bf19176f4c/en/articles/11006601-what-is-the-refundable-option-on-%F0%9D%93%94%F0%9D%94%81%F0%9D%93%B9%F0%9D%93%AE%F0%9D%93%AD%F0%9D%93%B2%F0%9D%93%AA

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https://intercom.help/expedia-76bf19176f4c/en/articles/11006416-how-do-i-ask-a-question-at-expedia

https://intercom.help/expedia-76bf19176f4c/en/articles/11006388-solveitnow-help-does-expedia-actually-refund-money-representative-lawsuit-against

http://support.google.com/edu/classroom/thread/335068120?hl=en&sjid=1820727774098224083-NC

https://patch.com/california/newark/calendar/event/20250402/8f2325aa-c1e7-45eb-88fc-e9e47af5b34f/what-is-the-cheapest-day-to-fly-on—xx-lowest-fare-day

https://support.google.com/edu/classroom/thread/335060200?hl=en&sjid=17713876241309622107-NC