A passenger wants to change their ticket but has lost their original ticket receipt. What do you do？

A passenger wants to change their ticket but has lost their original ticket receipt. What do you do？
A.No receipt， no change.
B.We can still process the change. I'll verify your details through our system.
C.You have to buy a new ticket.
D.Find the receipt and come back.
正确答案：B
试题解析：乘客想要改签但丢失了原始机票收据，此时工作人员不应直接拒绝或强制要求乘客购买新票。