This is he speaking.

我就是。

I'm sorry. I dialed the wrong number.

对不起，我打错电话了。

We're having a small to-do, and I'd really be happy if you come.

我们打算热闹一下，我真心的希望你能赏光。

Just a moment, I'll ask him.

稍等，我问一下他。

Yes, Miss. I will.

好的，小姐。我会注意的。

I'm calling for your assistance.

我打电话是要您帮助我。