20 year old female Erasmus student looking for accommodation from 27 September 2015 to 30 January 2016. Non-smoker & friendly

Hi, I am an English student. I am studying music and Italian and will be in Siena for the first semster for the first part of my year abroad. I desperately need to find accommodation. Preferably not a shared room, don't mind if it's a single or double bed with shared bathroom and kitchen. Close to the university buildings would be great. I am a friendly, out-going person and would love to share with other students and improve my italian language skills.