The usage of chatbots advanced swiftly in various fields in current years, inclusive of advertising, supporting systems, training, healthcare, cultural background, and leisure. In this paper, we first gift an ancient review of the evolution of the worldwide network’s hobby in chatbots. Subsequent, we discuss the motivations that drive the usage of chatbots, and we say that chatbots usefulness in a most of areas. After clarifying necessary technological standards, we pass on to a chatbot category-based totally on diverse standards, consisting of the location of expertise they check with, the need they serve and others. Furthermore, we present the overall architecture of cutting-edge chatbots whilst also bringing up the principle systems for his or her advent. Our engagement with the problem to date, reassures us of the possibilities of chatbots and encourages us to have a look at them in more extent and intensity. This research focuses on the development and application of a medical chatbot designed to optimize appointment scheduling, saving time and improving accuracy. The chatbot utilizes machine learning to access a vast amount of user data, offering a personalized experience. HealthBot, the chatbot, employs natural language processing (NLP) to understand user intents and matches them with symptoms. It also collects daily health data through APIs, utilizing a regression model to identify potential diseases and trigger notifications.