Conversation 1:

A:Hello，this is Mary from ABC Company in China.May I speak to Mr.Smith？

B:This is Smith speaking.

A:Oh，great.Can I make an appointment with you on 22nd this month？

B:Sure，what time？

A:Can I make it at 10∶00 a.m.？

B:OK，I'll meet you then in my office，bye.

A:Goodbye.