Female native English teacher for 8yrs old

I´m looking for a English native (US/Canada/UK/Ireland) female teacher to teach our 8yrs old son twice per week (private classes, 60mins each).Tues and Friday from 19.00 to 20.00. We live next to Cuzco/Plaza de Castilla (closest tubes: Duque de Pastrana, Pio XII, Plaza de Castilla; closest bus stops: 14 and 150). Starting in Sept. If interested, please email me at marlnmadrid2013@gmail.com