24 year old Colombian looking for accommodation in Geneva

I  am a 24 year Colombian who just got accepted in the UN to do an internship for three months. The Palais des Nations in Geneva will be my second home from November to February; but I still need to find my first home. 

I am a neat, organized and respectful person. I don't smoke, my pet stayed in Colombia. I speake very decent Spanish (Mother tongue) and English (semi Mother tongue). I also love French and I speak it a bit.