Looking for Mock Service in Napa week of 8/19/19

I will be in Napa Monday, Tuesday and Wednesday night.  Is there anybody or any groups that could put me through a master mock service exam one of those evenings, 7:30 or later? I will be staying in St. Helena, but I will have a car.   If anybody is preparing for tasting, I would be happy to bring 6 wines to provide a flight.

thanks