In this task, you have given an input which is user's command or question, based on that you have to return what will be Agent's response/reply for that particular user's command or question

Okay. When am I going line dancing?
The event matching "line dancing" is on Friday the 25th at 5:00 PM.

Could you make it for 2 hours.
Is this the change you want to make?

Now put an appointment for Jan 22 from 8 am to 5 pm

I've put that on your calendar. Your status is set to Busy.