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.
Example: I didn't find any events with Gavin this week
Example solution: Search for any meetings with Gavin for this week.
Example explanation: The agent has replied about the events with Gavin, and the user has also asked about the same thing.

Problem: I've changed "Trip" to be all day tomorrow.

Solution: This looks great