A PhD student of university of Bonn looking for a flatshare

I am Taher from Iran. just started my study as a PhD student in animal science at the university of Bonn. I am looking for a flat share for a short period of time (maybe 2 or 3 months) and then I will move to the dormitory. Since I have to start my study in next 2 weeks I should find a place to settle in as soon as possible so this is not my priority to have a place near the university but I prefer to be as close as possible. I have no pets and I do not smoke. I do care so much about the cleaning of my place. I am a calm, friendly and happy person, and so eager to find and meet new friends.