Nanny Needed For My Children - Full-time / Part-time

We are looking for someone who could help 4 hours once a week as my son is starting preschool part time 3 days a week in August. We are moving into a new home and I could use the extra help so I can unpack or run a few errands. I would also love someone who is open to date nights on the weekend maybe once a month. We would prefer a nanny who does not smoke and who is CPR certified. Thank you :)