Just an FYI, For RETIREE Non+revs, when booking hotels on the interline websites, make sure you have a "letter of Introduction"
From your Pass desk before you leave. Was in Fra recently and while checking in (Sheraton) was asked for one, even though I have a Retiree Travel card (UA). The Desk clerk was nice about it and Had to get a Supervisor involved and he "let us go" just this once. Was also politely told the rate was for active employees only. Be careful when Booking on the interline sites! Make SURE the rate includes Retiree's! . Some do and some don't. That being said, most of the time regular discounted rates can actually be found online cheaper.