Utilizing Neo4j's Knowledge Graph and Semantics for a RAG - Chatbot

I'm working on developing a chatbot that uses Neo4j as the database. I've created a knowledge graph by importing a corpus of data into Neo4j.
how to effectively leverage both the knowledge graph aspect and the semantic capabilities of Neo4j for this chatbot project?

Has anyone worked on a similar project? What strategies or approaches did you employ to optimize the retrieval from Neo4j? I'm open to any suggestions or insights that could help improve the chatbot's performance and make the most out of Neo4j's unique features.