For those of you who travel by plane and book online, you might be interested that some airlines have recently adopted a 24-hour rule that allows customers a cooling-off period to amend a booking without penalty, but little has been done to make customers aware of the new policies. Since I travel and have almost made mistakes on dates, this was helpful for me.

https://www.smartertravel.com/blogs/today-in-travel/airlines-secret-fix-for-booking-mistakes.html?id=3607790&source=dealalert&value=2009-09-17+00%3A00%3A00&u=SLCAB19444