Boy, I'd like to hire shouda been a blonde.

In our company, admins dont make reservations except for the very top. All professionals make their own. they felt it was an effective use of our time to spend hours on the phone with corp travel when we had been told to get on a plane the next day, so I can relate to your admins frustration, espeicaaly if she is responsible for also keeping the hotel in a specified price range and keeping you happy by getting a non-stop, etc

That all said and done, if its her job to get you there - she should "quite her *****in"

PC disclaimer - all references to her should read her/him etc