Native English Girl to look after children in summer

Hello!
I´m looking for a native British girl to look after my children (Ages 5 and 9) from 10.30h to 14.30h in July. She will have to speak to them in English, play with them, help them with their homework, etc.  We live in Pozuelo de Alarcón.
If interested send a whatsapp or email please.
Thanks!!!!
Jenny