Aftercare Needed 5:30-7:30

I am in the process of hiring a babysitter to watch my 2 children that are the ages of 6 & 4. I am looking for someone for select days from 5:30 to 7:30. My overnight schedule with my children varies from week to week. Typically I would need someone every other week on Thursdays, an occasional Friday, but then the following Monday and Tuesday. I work until 7 p.m. daily and I would need someone to pick up my son from his school by 6 p.m. and my daughter by 6:30 p.m. The schools are less than 10 minutes from each other. The person must be reliable and have reliable transportation along with a driving record. Car seats are a must. I have an additional seat that I could lend out as well.