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

When do I meet with Rex again?
It starts on Friday at 9:00 AM.

The July 22nd option works for me.
I've put that on your calendar.

I need to add babysitting to my calendar on Sunday at 10 am for 4 hours

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