A few ways to use it.
These are illustrative examples, not recordings or guarantees of the result.
A message
Say: “Could we move the meeting to Thursday?”
Review the inserted text, then send it from your messaging app.
An email
Give a brief: “Write to Sarah. Thank her for the proposal and ask whether she can send the revised budget by Friday.”
Review and edit the draft before copying it into your email app.
A meeting note
With everyone's permission, record the conversation. Keep the transcript and review the summary, decisions and action items afterwards.