babytting (London)

Hello,
I just moved to London with my husband and 2 children. I am looking for a german speaking person to help me with my 2 sons (the elder is 3 and the younger is 7 month old) 3 to 5 times a weeks from 4 to 7 pm or 5 to 8 pm. I would like her to play and speak german with my sons. I will be at home most of the time but in the end she might spend some time alone with them or one of them. If you are interrested or know anyone that might be interested please send me a e-mail.
Kind regards,
Christine Issa