Pick-up from nursery - Part-time babysitting

I am looking for a nanny/babysitter to pick-up my daughter from the nursery at West Hampstead and take her to our home in Willesden Green. The time that she will be picked up can vary between 16.30 - 18.30 and should stay with her at home until 19:30. The job will start in September. For the first few months if interested there is a possibility that she only goes to nursery for a couple of days and the rest to stay at home with the nanny/babysitter.