求一段英语对话.你和你的客户约定某一时间谈生意,但因故不能去,所以打电话通知并说明原因.然后另约一个时间.多用点专业词汇

A Hello, may i speak to Mr. John?
B Hello, This is John speaking. Who is that?
A This is Li Ming, from AC company.
B Oh, Mr. Li. How have you been?
A Fine, thank you. And you?
B I am good.
A As you know, we have made the appointment of tomorrow's business meeting, but unfortunately i just received an urgent case and i have to fix it by tomorrow. So i'm very sorry to say that our meeting has to be postponed. Could you please tell me the available dates this month, so that i can reschedule it?
B Oh, i see. ... Wait for a second. I will check my calendar.
A OK.
B Well, i will be available during next week except Tuesday.
A Got it. So we just put it off to next Wednesday, and we will start since 9 AM. Also, the meeting will take about 2 hours. Is it OK for you?
B Yes, it's good for me.
A Thank you very much. See you next time.
B See you.