Can I help you , sir ?   Yes , I want to book a plane ticket from Beijing to Shanghai .   OK . Which day do you want to book ?   The day after tomorrow .   Which flight do you want ?   I'd prefer a morning flight .   What about Flight 516 ?   Book it for me , please . How much should I pay ?   1 500 yuan . How will you pay for this , sir ?   Credit card .   OK . Here's your ticket . 