Proper sentences, from your own documents
People who write on Messenger often write at length and politely. The bot replies in full sentences and in the language it was written to in. Its knowledge comes from the same sources as your website bot: service descriptions, price lists, your website, your own Q&A pairs.
It only knows what's in there. If someone asks about a price you haven't put anywhere, the bot says so plainly and offers to pass the question on to you. A friendly wrong answer would be worse.



