Sitter in Calgary, Alberta

I'm looking for someone to take my 2 kids ages 6 and 9 almost 7 and 10 to school and pick them up for the new school year come september. We are moving to Renfrew and would like to arrange something sooner then later. I work full time from tues-sat 8-4:30. I'm unable to drop them off or pickup so would like someone for just before I leave and I'm usually not home later then 5pm. Would like a small snack to be given after school but no need to worry about breakfast or dinner