Nanny/babysitter

I need someone to cover my nannying job during my school's vacation week. February 23 - February 27, working Monday - Thursday or Monday - Friday from 4:15 PM to 6:45 PM. There are 2 kids: Marco (2 years) and Carla (5 years). Their grandparents are always around and are there to help out, but only speak Spanish. The job is to speak English around Marco, even though he only understands Spanish, and to only speak English with Carla and help her with her homework. She speaks and understands English very well. I'm looking for help just this week and am willing to compensate extra payment since it is a favor to me. If you are interested in this position, please look for me.