Will it be too late if I call around 9:00 tonight?

如果我在晚上9点左右打来会不会太晚？

You must have the wrong number.

你一定打错电话了。

I'll call you again later, OK?

我以后再打给你，好吗？

Hello, I have a bad headache.

喂，我的头痛得很厉害。

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。

No. I'm sorry, but we can't send out our tow truck to get you.

不能，真对不起，我们不能派拖车来。