IMO adding ads is not going to be that easy. It is relatively easy to implement ads when the user is scrolling through tons of content and the ads are "organically" injected into the stream. But if the user is seeking a specific answer in a chat-like GUI, what will you do exactly? Whatever ad you will show will have to be visually distinguished and the user will just scroll past to get to the "true" answer they want. Sure, you will still get the product in front of some eyes, but I would expect this to be less effective than other social-media based ads.