Though this is not the depth of conversation and language that I implied in my previous thoughts, it does represent some aspects of conversation like flow, intent and knowledge that are important. This takes you through the whole process of using Watson services on Bluemix. Not technical, worth a look if you want to understand it:
Build a Chat Bot in 10 Minutes Using Watson Conversation on Bluemix
Simplify the process of automatically understanding and responding to customers with Watson Conversation, a new cognitive service on Bluemix. Learn how to train and configure intents while optimizing dialog flow in 10 minutes, by reading this post by one of our developer advocates. ... "