Definition: 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.

Positive Example 1 -
Input: I didn't find any events with Gavin this week
Output: Search for any meetings with Gavin for this week.

Positive Example 2 -
Input: Sorry, I can't do reminders.
Output: Remind me of the first flight to london

Negative Example 1 -
Input: I didn't find any events with Jerri Skinner.
Output: I need it to last 2 hours.

Negative Example 2 -
Input: I've changed the location of meeting my friends to Starbucks.
Output: Can you add meeting my friends tomorrow from 12 pm until 3 pm at the library.

Now complete the following example -
Input: It's for a half hour.
Output: 


Output: How long?