For example , if you are talking to an airline ticket agent to reserve the last available seat on a flight and the agent starts the process of reserving the seat in your name , another agent should not be able to tell another passenger that the seat is available 例如,如果您正在告诉一位航空订票代理要预订某一航班上最后一个座位,该代理开始用您的姓名预订该座位,这时,其他代理则不能再告诉其他乘客还可以预订该座位。