Lison, cherche cours d’anglais à Magland

Instead of formal English lessons, I'm looking for someone who could actually spend 2h twice a week with my daugthers, I would imagine someone whose mothertongue is English, a bit like an au-pair:
When they arrive from the bus at 5pm: help them get a snack, make sure they do their homework, sometimes go for a walk with them, make sure they tidy-up their room, read them books in English etc.
... and only speak to them in English (they do NOT speak English themselves).