answer: #Person1# asks #Person2# about today's date and #Person1# realizes there is an appointment at 8 o'clock tonight.
documents: #Person1#: What's the date today Mr. Brown? I don't have a calendar. 
  #Person2#: Today is Tuesday, 25th September, 2001. 
  #Person1#: 25th Sep? Oh, I have an appointment tonight. 
  #Person2#: What time is your appointment? 
  #Person1#: It is at 8 o'clock . 
  #Person2#: What time is now? Do you have the correct time? 
  #Person1#: I don't know what time it is. 
  #Person2#: It must be about 6 o'clock. 
  #Person1#: I have to go now. I don't want to be late. 
  #Person2#: You won't be late. It's still early.