The Turtle Pond area has a pool with a snack bar, so it is a nice area.
I would probably not ask for a specific building since there are not that many units in each building. If there is nothing available in that building for the time persiod when you check in, the room assigner has no idea why you asked for that buidling - was it because you wanted a particular view, to be close to the bus stop or a pool, etc. It's better generally to figure out what you want and ask for that rather than the building.