How to create cinematic with text?

I created dialogue system by this tutorials and everything work. But I don’t know, how to create text in cinematic, because this dialogue start, when my character overlapped NPC (AI Controller). I don’t want to create a dialogue between the characters, but a narrative of the plot, as in the game Pumpkin Jack (0:00 - 2:35). But I don’t know, how to start typewriter in cinematic. Maybe you have a tutorial or article about this ?