I'd like to talk to Mr. Wang, please.

我想跟王先生讲话。

I'm sorry. I dialed the wrong number.

对不起，我打错电话了。

Yes, Mr. Tom. Let me check Miss Xu's schedule.

好，汤姆先生。让我查查徐小姐的日程表。

Dr. Tyler's office. Good morning.

早上好，泰勒医务所。

I need to cancel that. We have had a last minute change of plans.

我要取消预约，我们临时改变计划了。

Why not?

为什么不能？