The use of Conversational AI relies on data, as this technology relies on gathering enough information and knowledge to function effectively. A Conversational AI system is based on machine learning. This allows the AI to learn from data and continuously improve its performance. To enable this learning, they need large amounts of training data. In order for a Conversational AI to process natural language (NLP), it needs a large amount of text data to recognise patterns and relationships in human language, and to capture the probability and relevance of words and phrases.