Originally Posted by
Alpha Golf
But that's the reverse of what we're discussing. Poster's originally-preferred date was cheaper, he's changing preferred date to make it more expensive. I'm pretty sure he/she wouldn't go to ethics counsel and say they're doing that.
I'll leave it here, I've said my bit.
Government travel rules create some perverse incentives. Indeed, if it booked to W there would be (almost) no reason to change. (I did once pay myself for the higher fare class to get the PQM bonus to put me up a status level near end of year.)