After planning the overall experience, I searched and tested various APIs, ruby gems, and snippets of codes that I can possibly use during implementation. I originally had grand plan to connect to Google transcribe API and Facebook messenger, but faced multiple roadblocks with conflicting APIs and technical constraints.

Then I tested and iterated the interaction sequence and conversation flow with wizard of oz testing and experience prototypes (fake conversations). I then iterated in codes to fine-tune the interaction and overall experience.