When a passenger asks to change their reservation to a non - stop flight from a connecting flight， you should：

When a passenger asks to change their reservation to a non - stop flight from a connecting flight， you should：
A.Tell them non-stop flights are always full.
B.Check the availability of non - stop flights and the fare difference， if any.
C.Refuse to make the change.
D.Make the change without considering the fare.
正确答案：B
试题解析：乘客要求从联程航班更改到直飞航班，代理人应先检查直飞航班的座位可用性以及是否存在票价差异，然后根据情况再与乘客沟通。