这几句话英语怎么说

hello, might i help you？
或hello,what can i do for you?
这才是最标准的商业服务句子。直接问找哪位会让老外傻掉。
who should i call for you ?

I am already let him know. He is coming.

have you made apointment?

不懂时或需要对方重复用pardon.

1.who do you want to meet ?
2.Do you want to meet....?/ Are you looking for....?
3.I've called him, and he 'll be here right now.
4.Did you have make an appiontment with him?

Good morning, (good afternoon), may I know who are you looking for?/ Good morning, may I help you?
Are you looking for Mr.xxxx?
I have notiflied him, he will be with you soon.
Do you have an appointment with him?

您好，请问你找（来访）哪位
Good morning!/hi! can I help you? Are you being helped? How can I help you?
2
您是找（谁谁谁）吗
You need to see Mr.xxx?
3
我已经通知他了，他一会儿就来
I have notified him. He will be right with you.
4
你和他是否有预约
Do you have an appointment with him?