Onxiu Travel Agency , may I help you ?   Yes . I'd like to make a plane reservation to Shanghai , China .   Your name , please ?   Via Kiang . I'd like to leave on May 5th .   Let me see what's available . Yes , Air China has a flight on May 5th at nine fifteen in the morning .   Well , I need an economy ticket .   Single ticket or return ticket ?   Single . What's the fare , PLS ?   Economy fare for single ticket from Beijing to Shanghai is 500 yuan . 