Originally Posted by
nerd
Even if there is one room left, that doesn't mean you will be able to book it. I don't know what the situation is called, but it happened to me last summer on the CZ -- I was booking travel a week out and several trains were showing 1 room left, but the reservation agents weren't actually able to book me into the room(s).
The opposite can also occur. Inventory may say Sold Out, but due to mid-route turnover there could be space available the entire way by utilizing two different rooms. A good agent can sometimes help you cobble this together if you're determined to get a room and are willing to switch en route. Or, you could choose to ride in coach for one of the segments. (AFAIK, these scenarios are only possible for revenue fares, not on a single AGR award.)