When a passenger requests a partial refund for unused services on their ticket， you should：

When a passenger requests a partial refund for unused services on their ticket， you should：
A.Partial refunds are not allowed.
B.Let me check the airline's policy regarding partial refunds for unused services and calculate the amount for you.
C.You can only get a full refund or no refund.
D.I don't have time for this.
正确答案：B
试题解析：对于乘客提出的部分退款请求，不能直接拒绝或只提供全退或不退的选项，而应先查看航空公司关于未使用服务部分退款的政策，再进行金额计算，以合理处理乘客诉求。