The key to structuring a conversation design involves considering statistical approaches such as Bayesian reasoning, which provides actionable results faster and focuses on reaching statistical significance without requiring in-depth knowledge of statistics. To start, analyze conversational transcripts, historical data, and usage patterns to identify areas for improvement and formulate a hypothesis tied to a specific metric, such as NLU accuracy or human handover percentage. Next, create a variation that directly relates to the hypothesis and tests only one aspect at a time to ensure accurate results. Analyze statistical significance using an A/B test calculator and deploy changes to refine the conversation design. By following this structured approach, designers can iteratively optimize their conversational experiences to drive optimal user experience.