Any time a University account pays for a flight change fee, sponsored or non-sponsored, there should be a valid business reason. If the charge is on a sponsored account, there should be a valid business reason and evidence of savings presented if the change results in leaving early. These savings could be hotel charges as well as savings on per diems. If there is no savings greater than or equal to the fee then the traveler should seek sponsor's approval and submit documentation with the travel reimbursement.