four-legged and two-legged guests with open paws to give them welcome kits, welcome packages, greet them, show them where the services are in the hotel pennsylvania. reporter: but these are not your average house dogs. they re bred to be the best and sometimes come with some unusual requests. we ve had some dogs requesting an opera singer in the lobby to serenade them before the show. almost like a good luck charm. the food is always important. we ve gotten chicken sandwich requests. spinach pizza. you name it, we ve heard it before. reporter: with such a big prize on the line, perhaps it s no surprise these dogs come with superstitions. we talked about people wanting certain rooms. tell me why someone would want room 212 this weekend. what s interesting is people have the rituals before the show, because best in show is chosen on the tuesday.