Given the success of Alexa and Siri (and various voice->NLP interfaces in varous settings) - why do you say that chat-bots have failed? (Maybe you are using a different definition than I?)
I use a set of chat-bot related APIs to implement CLIs for various EHR-related and clinical-related applications (Navigating kajillions of options in EHR menus requires, famously, too many damn clicks. Physicians are intelligent enough to learn simple syntax to avoid all that crap)
I'm probably using the wrong words when I describe it, but when I tell developers in the ecosystem that we have a "chatbot-like" interface, people seem to get it, so I haven't upgraded my nomenclature.
I'd love to learn more about this. Who are your customers? What are the use cases? Can you share a link where I can read more?
Thanks!