Inside the House is a DCist feature offering an insider’s view of fine dining issues by the hostess at a D.C. restaurant. By DCist contributor Nadya S. Nikiforova As you probably know by now, a positive dining experience is a two-way street between the diner and the establishment. And the first step toward that is a phone call you make when asking for a reservation. Sounds simple, right? It is. But anyone who has ever…