Where I have used dialogue, it is based on the recollection of at least one participant.
"The script uses original dialogue and testimony, as recorded in court documents of 1692".
Of course, we don't have to use dialogue to get this effect.
The idea of using dialogue is central to building drama in our nonfiction writing.
They also agreed on using dialogue to settle the Spratly islands issue.
He often uses dialogue and "stage directions" rather than ordinary prose.
He used dialogue, quoting his own words and those around him.
He is famous for using improvised dialogue during stage plays.
The main aim of using dialogue is to strengthen the connection between the performer and the audience.
The Clinton administration, he said yesterday, should have spent more time using dialogue and mediation.