UIDialogue.cs

public void NextDialogue(bool firstDialogue)
{
	// Hide the choices before each new dialogue is shown
	HideChoices();

	// Get the current conversation
	var conversation = Conversations[CurConversation];

	// Are we at the end of the conversation?
	if (CurDialogIndex >= conversation.Count)
	{
		// Close all the dialogue UIs
		CurDialogIndex = 0;
		Destroy();
		return;
	}

	// Get the current dialog in the conversation
	var dialog = conversation[CurDialogIndex++];

	// Display the dialogue
	Text(dialog.Name, dialog.Text, firstDialogue ? 0.5 : 0);

	// Are there choices to this dialogue?
	if (dialog.Choices != null)
	{
		// There are choices, lets show them
		SectionChoices.Show();

		// Showing all choices that were defined
		for (int i = 0; i < BtnChoices.Length; i++)
			if (dialog.Choices.ElementAtOrDefault(i) != default(Choice))
			{
				var btn = BtnChoices[i];
				btn.Show();
					
				// Lets do something when we click on a choice
				void onPressed()
				{
					// Unsubscribe as soon as we click on a choice to prepare it for later
					btn.Pressed -= onPressed;

					var dialogues = dialog.Choices[i].Dialogues;

					// Does this choice lead to additional dialogues?
					if (dialogues != null)
					{
						// ???
					}
				}

				btn.Pressed += onPressed;
			}
	}
}