Transportation Needed For My Mother In Wayland - Full-time / Part-time

I am primarily looking for a driver for my mom who is 80. She is fun and mentally "with it", but physically slow. My parents live together, but we are trying to take the pressure off my dad having to drive her everywhere. I'm thinking Monday, Wednesday, Friday from 11am-2 p.m. would work well. But, we can be flexible if other days work better. And curious how it would work if my mom needed a ride somewhere and wanted to be picked up 3 hours later? Responsibilities will include running errands with my mom and basically transporting her to/from appointments. Very Best, Robin