Babysitter - Full-time / Part-time

Hello! I am looking for a sitter for my 12-year-old daughter. She is very independent, but I need someone here at my home while I attend a few important appointments where I will be unavailable by phone. I want to be sure that she is safe and her needs are met while I'm away since she won't be able to reach me while I'm at these appointments. I need assistance on Monday, June 16th from 7:45 a.m. until about 10 a.m. and July 2nd from 9:30 a.m. until about 12 p.m. Thank you!