Casual Overnight Care

Hi There! I am looking for someone to provide overnight care for my 13 year old son when I travel for business. I am a single Mum and just need an extra set of hands from time to time. There is an immediate urgent need for someone to help me out next week (1 - 4 Sept) due to unexpected travel. My son is in Year 7 and quite independent. He can get himself to and from school. Just need someone to prepare dinner and provide supervision overnight.