Solved A simple conversation prompt

I've read a bunch of the information about the conversation api, but I'm just not getting it for some reason. I just need a simple prompt that asks the player "Do you want to buy this region?" Then the player types "yes" or "no". If the user types something else or doesn't type anything in like 3 seconds the conversation cancels itself. That is all. If anyone can help that would be super awesome.

Abandoned

EDIT by Moderator: merged posts, please use the edit button instead of double posting.