If a passenger wants to book a multi-city ticket， you need to：

If a passenger wants to book a multi-city ticket， you need to：
A.Refuse to book it.
B.Carefully input all the city pairs， travel dates， and check for the best available
connections and fares.
C.Book only one-way and ask them to book the rest separately.
D.Charge a flat fee regardless of the complexity.
正确答案：B
试题解析：乘客想预订多城市机票，客服人员应仔细输入所有城市对、旅行日期等信息，并查询最佳的航班衔接和票价。