I'm just gonna take this moment to say that, not only do you have a wide variety of mods to choose from when it comes to silencing the protagonist, but one such mod has already made excellent use of the existing protagonist dialogue to make a fairly seamless conversation, which you can find here: http://www.nexusmods.com/fallout4/mods/13949/? Not only that, but we've already seen the dialogue limitations can easily be surpassed by using one of the three options to take the player to another group of options, which is rather easy to do in the GECK. I'm frankly sick of people still lurking in the Fallout 4 forums, doing nothing but reiterating their complaints from seven months ago and offering no actual solutions; just griping. Thank you danny, people don't seem to understand how easy the dialog system actually is to get around.