Hey! Sorry for the late reply!
If I understand your question you want just to show the content of player's prompt into the text of message or choice windows.
You can just use escape codes with the variable ID used for registering the player's prompt.
Like:
"Hey! This is the text you have typed: \v[variableId]" where "variableId" is the ID you've used for saving player's input.
Good luck!