Sets the dialogue of the specified NPC. An empty string value can be specified for the dialogue name in order to remove the NPC's dialogue. The dialogue name is case-sensitive.
Results: The purple slime's dialogue is changed to “second_dialogue”.
Use the Set Dialogue function to switch an NPC to an entirely different dialogue after your game has progressed to a new part of the story or to remove an NPC's dialogue after they no longer have anything to say.