Hello, ABC Company.
Hello, could I speak to Mr. Wang, please?
I am sorry. He's out in a meeting now. Could I ask who is calling?
This is Mr. Smith of XYZ Company. When will he be back?
He'll be back at about five in the afternoon. Could I take a message?
Yes, Please tell him I called and ask him to return my call as soon as possible. It's about the PPT contract.