This course equips professionals with the skills to design, test, and evaluate human-centred conversational experiences for chatbots, voice assistants, and AI-powered systems. Participants will learn how to move from vague requirements and flowcharts to clear, resilient conversations grounded in real user goals without writing any code.Using a mix of real-world examples, collaborative design exercises, and live role-play testing, learners will explore how conversations work, why most conversational systems fail, and how to design dialogue that handles ambiguity, errors, and real human behaviour.By the end of the day, participants will have:A tested conversational design for a real-world use caseA repeatable process for designing and evaluating conversational experiencesPractical techniques for testing conversations before development