Pet Sitter Job in Greenfield, Indiana

I am looking for someone to stop by periodically throughout the week while I am at school to look after my dog MIra. She is a 7 month old german/australian shepherd mix. I won't need care everyday, just on days that no one else in the house is home. I would mostly need her to be able to run around and get her energy out through playing in the yard or walking. I would also need someone who could reinforce the training we are giving her and try to limit her destructiveness.