In today's fast-paced retail landscape, delivering exceptional customer service while enabling personalized shopping experiences is paramount. We'll take audience on a technical journey through the creation of a knowledge-driven chat application designed to answer customer questions, guide product discovery, and tailor search results. This innovative solution combines the power of AlloyDB for data storage, an in-house analytics engine for contextual understanding, Gemini (Large Language Model) for relevance validation, and Google's Agent Builder for quickly bootstrapping an intelligent conversational assistant.