LOOKING FOR A BABYSITTER

I'm looking for a native English speaker person to pick children up  from school (aged 8 and 13) and help them with their english tasks. The schedule will be from 17:00 to 19:00h. From Monday to thursday since16th of September. 
In Alcorcón (Avda. Retamas). 
Avda. de las Retamas Train Station.
Metro Alcorcón Central