他不在座位上,/办公室 He is not there/in (the office)
请问需要留言吗?May I take a message for you?
你可以一会再打来 You may call him later
别挂机,请等一下 Could you please hold on one second?
另外的有:He will be back around 4 pm.他下午四点左右会回公司．
Is there anything else I can help?还有什么需要我帮忙的吗?
He is on another line．他在接电话．
He is off today.他今天休息．
He is on holiday now.他正在休假中．
He was not coming yet．他还没回来．
He will be here in 30 minutes.他半小时后回．
He is attending a conference now./He is in a conference.他在开会．
He has gone home.他已经回家了．
You can call his mobile phone if anything immediate.如果您有急事可以打他手机．
I am soory,he is unavaible.不好意思,现在他不方便接听．
May i have him call you back?需要我让他回您个电话吗?
另外,如果对方要留言,就要问姓名等等．．．会用到以下：
May I have your name,please?请问您的名字是?
And your contact number?还有您的联系电话是?
希望帮到你啦＾＾