One Time Initially, Possible Future Help As Well Needed!

I am looking for a great babysitter for 2 children ages 10 and 8. Both very independent and responsible. You would be helping intermittently with this one time help, as my one kiddos best friends mother is already helping as well. I can explain the need better when we talk. Work travel and hoping to have help in the future if things work out smoothly during this first time. I would prefer a babysitter who has their own car, who does not smoke and who is CPR certified. You honestly would be an additional fun adult for supervision, and possibly one or two school pickups/drops. Again, I will make sure to explain everything. Hoping to find someone soon, and this would be a flat rate job for this need. Future pay hourly of $15-20 an hour depending on the need for the day.