The idea is to allow people to book tickets (movies/flights/sports/etc.) and pay all sorts of bills via WhatsApp. You simply chat with my company's automated WA Business Account and get things done.
"Simply" is carrying a lot of weight there.
No, I would prefer not to slowly talk to an AI of unknown quality, waiting for its responses, trying to guess what magic words I need to say, when instead I can load up a website and use an interface that actually shows me things.
I’ve basically done (had to do) this for lodging and transport in parts of the world where a web presence (and digital business architecture) are less common, though obviously without the AI (I assume). It’s not my favorite way to book things but it works. It’s not a terrible idea by any means and I’m sure it will be incorporated into many apps in the future - I say just build the dang thing and FB will prolly buy you out before you have to deal with a lot of the really hard problems. Focus on a particular market so you can hone in on getting it right for that one thing and accumulating some users and reputation.