Babysitter Needed for my Children - Now Hiring

One child is 8 and one child is 10. I want someone who will come in the evenings and sometimes stay overnight. I want a set rate not an hourly. A cost per night. I would like someone who will clean the kitchen and help the kids clean their rooms. Play board games with them , maybe walk them to the park or take them to the pool down the street. Dinner will need to be made and I also have a small dog that needs to be let in and out to the backyard.