Evening Nanny

I'm looking for an evening Nanny that would be reliably available to work every Saturday and Sunday from 5pm-9 p.m. This would involve receiving my children from their father when he drops them off, feeding them supper and getting them settled for bed. By the end of October, I would like to add a third evening (either a Mon or Friday) depending on my work schedule, from 4pm-9 p.m. Please discuss with me if you're interested but concerned about every Saturday and Sun. I'm most interested in consistency and my parents live in town. So if you'd be consistently available during the listed hours two of the three days, I'd love to hear from you!