Babysitter Needed For 2 Children

We are looking to add a babysitter for our 2 boys. They are 7 and 10. This is not a recurring job and it's not a one time job. Care makes me choose one. We do intend to use this sitter over and over, but there is currently no set dates. The one necessity we need is someone that will be able to possibly stay overnight with the kids a couple times a year. If you are not available on Saturdays or Sundays at all during the day, this may not be the job for you. We like to get to know our sitters, so they become very familiar with our family. Some light tidying up would be part of the responsibilities. We do have a large, 1-year-old dog, so please consider that when applying. Although we do not have recurring needs at this time, but use sitters often for date nights, concerts, hockey games, etc.