Looking for a room in Geneva centre

I'm lookig for a private room (with or without a bathroom) from May 2015 until end of July 2015. I'll be in Geneva for an internship. Currently I am studying at University of Toronto in Canada. I was born in Istanbul, Turkey. I am fluent in English and Turkish. I prefer a single room with flatmates that are respectful, quiet, and well adjust. In Toronto I live with a flatmate so I am use to living with someone else. I don't mind pets as long as they are not any kind of reptiles and/or mice/mouse/hamster. I don't have any allergies. I prefer a location close to public transportation and preferably to the United Nations HQ.