Is One of Your Attendees Missing His Best Friend? Then let him take Pierre for a walk. Pierre is the London Mews Hilton's eight-year-old black springer spaniel, now available to go on walks with guests missing their own dogs back home. The 72-room London Mews Hilton is near a number of Pierre's favorite parks--and guests need not worry about getting lost, says Martin Young, the hotel's concierge and Pierre's owner. Pierre knows the way to the hotel "like the back of his paw."