Childcare Needed

I am looking for a babysitter (or babysitters) to watch my kids (4 & 22 months) and my nieces (3 & 23 months) while the adults go to dinner & a concert. We will be on vacation for the week in West Dennis. The job will include some light play at the Airbnb, dinner prep, dinner, baths, & bedtime. My kiddos go to bed at 7ish while my nieces are on 8:30 bedtimes so you don't need to do 4 bedtimes at once. All of the girls are happy and sleep trained.