Roommates in dorms

Hey, so I did have a roommate for my double apt. w/o kitchen, but she got into a different room instead. On my portal it shows no upcoming roommates. Will I randomly get assigned some and not know until the day of move in, or will I be alone in the apt.? If the latter, would I have to pay another price?

you will get assigned another roommate. You might know before moving in, but might not.