I'd like to check in, please.

我想办理入住。

Of course.

It's Moreno.

I'm staying three nights.

我姓莫雷诺。我要住三晚。

I have your reservation here, Miss Moreno.

我这有您的预定，莫雷诺小姐。

Here is your room key.

这是您的房间钥匙。

You'll be in room 235, on the second floor.

您的房间是235，在二楼。

What is your last name?

当然可以。您贵姓?