Forgot to add, the top level interactions (e.g., lead questions or email capture) require the user to choose an option on the Chat UI (via a button click) to re

Forgot to add, the top level interactions (e.g., lead questions or email capture) require the user to choose an option on the Chat UI (via a button click) to respond, therefore, didn't really have a need to store the context/NLU. I've built some pre-defined responses to open text questions that rely on Levenshtein Distance and threshold (e.g., 90% similarity) for identifying appropriate response. Hope this helps. For stuff that's not defined, the bot says something like "I don't know."