https://central.xero.com/s/question/0D58V00009hMXkTSAW/unlock-savings-on-aawhat-day-is-the-cheapest-to-book-american-airlines
https://central.xero.com/s/question/0D58V00009hMXkTSAW/unlock-savings-on-aawhat-day-is-the-cheapest-to-book-american-airlines