1 Service Provider, 2 locations = 2 sets of working hours

I have 1 Service Provider who works at 2 locations during the week.

New York: Mon, Tues & Thurs
Long Island: Wed & Friday

I need to be able to split this up. The only solution I can think of is to have 2 Service Providers and split the days up accordingly, but that requires 2 separate Wordpress users, which is not an option.

I've tried the dummy option but you can't choose the dummy account as a Provider when making an appointment. I'm not sure how the Dummy option makes any sense to have. Am I doing it wrong?

There has to be a way to do this.