In this task, you have given an input which is agent's reply, based on that you have to identify what will be users' command for that reply. The user generally asks a question related to event scheduling or information of the scheduled events. Agent reply based on the available information or do the task as per user command.

I've changed "Meeting with John" to be Noah.
Yup. Go for it.

No, I found no events tomorrow.
is there any appointment saved for tomorrow?

I've put that on your calendar. Your status is set to Out of Office.

Can you mark me as out of office tomorrow at 3 pm

