有哪位知道宾馆服务员在工作时面对外国客人有哪些相关的话要说？是用英语说的，请详细一点！

-(Knocking at the door.)-(敲门。)
-May I come in?-我可以进来吗?
-Come in,please.-请进。
-Please don't come in.-请不要进来。
-Just a moment(a minute),please.-请稍等一下。
-I'm sorry to disturb you.May I clean the room,sir?-对不起打扰你了，我来打扫一下房间好吗?
-All right.Come in,please.-好的，请进来。
-Please clean it when I am out.-我马上要出去，请等一会儿打扫。
-May I change the water of the thermos now?-我现在可以换水吗?
-Yes,please.-请换吧。
-Some of my friends will come and see me this afternoon.Will you please give me some more hot bottles and tea cups?
-下午我有几位朋友来访，请给加些热水瓶和茶杯。
-Well,we'll send tea into the room when the visitors come.
-好，客人来访我们会端茶进来的。
-By the way,is there any mail for me?-顺便一下，有我的邮件吗?
-No.If there is,I'll give it to you in time.-没有。如果有的话，我会及时给你送来的。
-Why did you come in without my permission?-你为什么没经我允许就进来了?
-It's my negligence.I beg your pardon.-我疏忽了，请你原谅。
-I come and make the bed.Shall I do it now or later?-我来做夜床，你看是现在做还是等会儿做?<