請問在這個情況下芵文點用?

你可以答

不在office
Sorry, he / she is not in the office, may I know your name and telephone number, I will ask him / her to call you back.

講緊電話
Sorry, he / she is talking on the other line, may I know your name and telephone number, I will ask him / her to call you back.

希望幫到你啦!

I think you could say :

I am sorry, Mr. X ( Surname ) is now out of office/ engaged in the line, would you like to leave a message to him ? I will let him know and call you back.

你可以講

不在: i am sorry that he is not in the office now / he is away from the office right now
正在講電話中: sorry that he is talking on the other / he is on the other line

請你留下電話或姓名我會轉告他: Could you leave down your name and number, i shall ask him to call you back, thank you.

I am sorry. My boss is not here now/ is on the phone, plz leave yr name or tel no. I will pass on the msg to him soon.

Sorry, he is not in the office at the moment
Sorry, he is talking on the phone / not available at this moment, may I take a message for you and have you to call you back shortly?

SORRY, MY BOSS IN ANOTHER LINK,COULD YOU MIND HAVE A MESSAGE WITH YOUR NAME AND TELEPHONE NUMBER , I WILL ASK HIM/HER TO CALL BACK YOU

但他不在,你想説他不在或者正在電話中...請你留下電話或姓名我會轉告他.英文點講?謝謝

May I know who is calling? He is not in at this moment, would you mind to leave your name and phone number, I will ask him to return your call as soon as possible, thanks

Mr/Miss/Ms (surname) is not available now. Can you please leave him/her a message or your contact number? I will tell him/her to phone you back.

Sorry, he is not spare / talking in another line. Would you like to leave a message? He will call you back later .

2006-11-30 16:32:17 補充：
....Would you PLEASE leave a message?....