Part time (10-2 pm) English o American tutor

Hi, 
I am looking for a English / American tutor to teach english and be with my 2 girls  (  11 and 12 years old ) and have fun !  . Work monday to friday , 4 hrs a day ( 2 hrs teaching english and 2 hrs free time playing or in the pool with the girls ). Starting about 10 th June until end July . Salary: 500 eur / month for 20 hrs a week . We live in Boadilla del monte, Madrid.