A room in a furnished apartment

I am a student and I am looking for a room in an apartment. The room for me shouldn't be that big because I am a tiny girl, so I don't need that much space. I do not have preferences about the furniture as soon as it is in a good shape. I would like to live with some other people around, but I'd prefer to be only me in the room. I would like to have flatmates and to share the rent with them and, why not, a friendship :)

I am not a smoker, but I would like to have a balcony.