约人吃饭的英语口语表达

I'm sorry, but I have to cancel out luncheon appointment. 真抱歉，不过我不得不取消我们午餐的约会。
I'm sorry to hear that. 真遗憾。

I have pressing business to attend to. 我有紧急的事情要处理。
No problem. we'll make it later in the month. 没关系，这个月改天再说吧。

来源:和谐英语学习网-口语频道