Originally Posted by
hailstorm
Just try modifying such a reservation online. You won't be "changing" anything; you'll be making a new reservation based on the prevailing conditions while keeping the existing reservation number. Do you think that the CSRs have a magic tool to do it differently?
I'm sure somebody somewhere could waive a magic wand and make it happen the way the OP wants, but it wouldn't be a part of the standard way of doing things.
My Hyatt Concierge has modified reservations for me multiple times. Take a day out, add a day, switch some nights to points or vice-versa. Never a problem.