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

The second is better.
I've put that on your calendar.

Can you delete my Thursday 3 pm physical therapy appointment?
I didn't find any events matching "physical therapy appointment" on Thursday at 3:00 PM.

Yes schedule that

I've put that on your calendar.