Budia, looking for a babysitter in Watford WD99

I am a mother of a lovely 3year old working full time. My child currently attends a term time nursery near my work. I would like to familiarise my child with a qualified Ofsted Registerd child minder. I would need somebody for the week beginning 5th or the 12th of October. I would also like them to look after my child occasionally when needed. As in future when my child starts school next year she will need someone to drop her in the morning and pick her up, as I would be working. i would like to find someone she is secure and familiar with now rather than wait until shes about to start school.