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 "dinner" to be at 9:00.
Yes looks good

Here are some times when you and mary are free.
create an appointment with mary on thursday

You have not responded to the "Adopt a Maltese" invitation.

What did I respond to Brian's event?