International (United States) Summer Intern Looking for Housing!

I am looking for a single room bed space in a flat share. I would like the place to have a kitchen, and a bathroom that could be shared. I want to be near my work at the University of Gottingen on the Nord Campus from May 15th to August 10th. I hope for rent to be under 500 Euros. I am from the United States and am in my last year getting a degree in Environmental Chemistry. I only speak English. I'm very friendly and great at communication. I like to keep things clean and want no smoking at the home. I have lots of experience living with other students and love to go biking and enjoy the outdoors!