Six-year-old Kuki and one-and-a-half-year old Alita recently joined the 'official staff' of Istanbul Airport, one of the busiest in the world, with a mission to provide comfort for tense travellers. "I was physically exhausted. But seeing these dogs here produced too much endorphin, I am not tired at all," says Ali Bahtiyari, 31, before catching a flight to Tehran. IMAGES AND SOUNDBITES