When a passenger requests a change of reservation due to a flight cancellation by the airline， you should：

When a passenger requests a change of reservation due to a flight cancellation by the airline， you should：
A.Charge them a fee for the change.
B.Assist them in re - booking at no extra cost according to the airline's policy.
C.Blame the passenger for the cancellation.
D.Tell them to find another flight on their own.
正确答案：B
试题解析：由于航空公司原因导致航班取消，乘客要求更改预订，客服应按照航空公司政策协助乘客免费重新预订。