Nanny for 2 girls, 10 and 13 years old

We are looking for a Greek speaking nanny, to take care of our 2 children for 3 hours everyday. She has to pick up the girls from the school, take them home, prepare them something to eat, tidy up their room a little bit and help the youngest one with her homework. The girls are very independent, especially the older one, they just need someone to be with them and make these hours more interesting.