Upscale restaurant for a business dinner/meeting?
I need something off the beaten path, open on Sunday, and where four people can comfortably talk (not loud). My first choices were Local (closed on Sunday) and Lucia (already booked up, of course). We are already going to Abacus on this trip, so that's out too. And being not from Dallas, I've exhausted all options that I know of. Suggestions? No chains please, something local for sure.
ETA: We will be staying in Dallas, at the Hyatt Regency. Cabbing it is not a problem. Something too close to the hotel/conference would be.
Thanks in advance!