American Airlines provide 24 hour cancellation policy (+๐ญ-๐ด๐ฒ๐ฒ-๐ณ๐ฏ๐ด-๐ฌ๐ฒ๐ด๐ต) (ota) if you book a flight at least 7 day before departure and cancel within 24 hour of Booking you will get full refund without any cancellation fee
https://www.nairaland.com/8259410/what-cancelation-policy-american-airlines