I am an upcoming freshman, and yesterday I submitted the dormitory preference, as well as room selection. I got confirmed which room I would spend one year and with whom, but honestly I made a mistake on that. I did not consider over the dorm that much, so as long as I could just stay there, I thought I would be fine. However, after several hours on pondering, I changed my mind: I would like to switch my room now. Will they allow me to change the dorm? I will call them next Monday; Is that an wasteful action?