Babysitter Needed for my Children - Full-time / Part-time

We are looking for a great babysitter for 3 children in Park Ridge. This is for help at a wedding at St. Paul of the Cross church. I need help with the kids before the ceremony, making sure they know when to walk down the aisle as ring bearers, and taking out the 16-month-old for snacks and walking around when he gets fussy during the ceremony.