情景：你是公司的经理，秘书小李刚出去吃午饭，突然接到上级部门电话，要你马上去一趟，要谈有关职员方面的问题。
任务：请你用英语给秘书写一张50左右的便条。告诉她：
1 你何时回公司；
2 让她通知公司人员下午何时何地开会；
3 你在会议上要谈什么
请用下面的格式：
Miss Li ,
……
Wang
范文：
Miss Li,
I have to go out at once . And I think I will come back in about two hours . Please tell me all the people in our company that there is going to be a meeting in the hall at four o'clock . Everybody has to attend the meeting because I have something important to tell them .