The answer is usually no, unfortunately enough. It's mainly because of the arrival dates as they pair people in housing based upon it.
You've got to look at it from a practical perspective. It would be hard for them to hold a room (or part of one for roommates) until someone shows up a later date. The housing fees are usually proportionate to the number of people in a single apartment, which would make things even more confusing.
I'd recommend finding another roommate to pair up with in the meantime (Here on the Boards, Tumbler, The Facebook group) so you can find someone that you get along with instead of being paired when you get down there.
Cheers!
Have a Magical Day!