ABC贸易公司。请问有什么事？
ABC Trading Company. May I help you?

For example:
A: ABC Trading Company. May I help you?
ABC贸易公司。请问有什么事？
B: Hello. This is George Shute. I'd like to speak to Mr. Brown, please
喂，我是乔治•舒特，我想跟布朗先生讲话。

请问贵公司的名字？
Could I have the name of your company, please?

For example:
A: Could I have the name of your company, please?请问贵公司的名字？
B: Yes，it's Madison Industries.梅迪森工业公司。

布朗先生在吗？
Is Mr. Brown in?

For example:
A: Is Mr. Brown in?布朗先生在吗？
B：I'm Speaking.我就是。

喂，请找肯尼听电话好吗？
Hello. May I speak to Kenny, please?

For example:
A: Hello. May I speak to Kenny，please? 喂，请找肯尼听电话好吗？
B: I'm sorry. He's not in right now. Who's calling, please?
对不起，他现在不在。请问您是哪一位？

我找布朗女士，是有关广告的事。
I'm calling for Ms. Brown in advertising.

For example:
A: I'm calling for Ms. Brown in advertising.
我找布朗女士，是有关广告的事。
B: I'm sorry, but she's in New York on business.
很抱歉，她出差到纽约了。

你知道他什么时候回来吗？
Do you have any idea when he'll be back?
When do you expect him back?
What time do you think he'll be in?
Can you give me some idea when he'll be back?

For example:
A: Do you have any idea when he'll be back?
你知道他什么时候回来吗？
B: He'll probably be back around 5:30. 他大概5点半就会回来。

我是回格林女士的电话。
I'm returning a phone call from Ms. Green.

For example:
A: I'm returning a phone call from Ms. Green.
我是回格林女士的电话。
B: I'm sorry. She's gone home for the day.
很抱歉，她今天已回家了。
return a phone call 回电话

我恐怕她现在无法分身。
I'm afraid she's tied up at the moment.

For example:
A: I'm afraid she's tied up at the moment. 我恐怕她现在无法分身。
B: No, thank you. I'll call again. 不，谢谢你，我会再打来。

对不起,他正在接听别的电话。
I'm sorry, he's on another line at the moment.

他不在座位上。
He's not at his desk.

她不久就回来了。
She should be back before long.
before long不久以后