Thanks to you both so far. It's part of a five star hotel, with booths so I'm guessing it's a safe venue.
I haven't been before so that's playing on my uncertainty, DH has, but it was years ago.
I'm thinking if we are the only two at our table/booth and we wear our masks if we go to the bathroom we should be ok. We won't be mingling with anyone else except staff who will have their masks on. It won't be a late night as we are both working on Monday.
Thanks- I think posting here has helped me figure it out talk myself into going !