For anyone interested, the class, which covers interactive intelligence and knowledge based AI, is freely available at https://www.udacity.com/course/knowledge-based-ai-cognitive-... . It's a great starting point if you're looking to automate the sort of human intelligence tasks that don't lend themselves well to the traditional searching/planning/proving/minimax/retrieval route that underpins most AI.
I took it before they rolled out the chat bot TA, unfortunately.