A passenger wants to change their reservation but can't remember their booking reference. What should you do？

A passenger wants to change their reservation but can't remember their booking reference. What should you do？
A.Refuse to help them.
B.Ask them to provide other identification details like name and flight date.
C.Tell them to call back when they remember.
D.Get angry at them for not remembering.
正确答案：B
试题解析：当乘客忘记预订参考号时，客服应积极寻求其他方式来帮助乘客解决问题。