Design end-to-end conversational experiences for voice and text AI agents. Craft dialogue flows, conversational patterns, and error handling. Define and evolve AI agent personality, tone, and voice guidelines. Collaborate with product, engineering, AI/ML, and product design teams. Conduct user research and testing for conversational interfaces. Design for edge cases, errors, and conversational repair. Create conversation design documentation. Partner with product designers for seamless integration with visual UI. Measure and optimize conversational experiences using analytics and feedback.