The Aegean Airlines’ chatbot simultaneously serves hundreds of queries through advanced natural language processing, offering uninterrupted service, 24x7x365, anytime, without waiting times and human operators’ costs. The MPASS “mysocialpass” platform has been used to configure the flow on the bot, to manage the offered content, messages and texts. The MPASS GotIt NLP engine has been used to train the bot, and deliver simple responses on atomic queries, or guided multi-query dialogues that require some state to be fulfilled.