They did have a private booth, but it was in the main room of the restaurant, as Diana quite liked people watching herself. She had opted for the private booth mainly out of her own comfort - while she liked people watching, she had had more than a few uncomfortable experiences of being intensely studied while trying to enjoy a meal, and had no desire to repeat the experience. Besides which, it allowed them time to enjoy each other's company without the worry of someone interrupting them.

Though she was very much looking forward to going dancing.