Searching a particular english teacher (Pozuelo de Alarcon)

I am looking for a native English or USA teacher (girl) for my son, he is 13 year old .
The idea is to reinforce the grammar that are taking place in the school and conversation in english.
Need in total 2 hours per week, ideally one hour on Monday and another hour on Wednesday. From 19:00 pm.
I live in Pozuelo de Alarcón near HIPERCOR POZUELO. 
I need to know your availability to begin in January 2010. 
Patricia