Abstract: The growth of technologies like Artificial Intelligence (AI), Big Data & Internet of Effects (IoT),etc. has marked numerous advancements in the technological world since the last decade. These technologies have a wide range of operations. One similar operation is “ Chatterbot or “ Chatbot”. This technology is a combination of AI & Natural Language Processing (NLP). Chatbots have been a part of technological advancement as it eliminates the need of mortal & automates boring tasks. Chatbots are used in colorful disciplines likeeducation, healthcare, business, etc. In the study accepted, we reviewed several papers & bandied types of chatbots, their advantages & disadvantages. The review suggested that chatbots can be used everyplace because of its delicacy, lack of responsibility on mortal coffers & 24x7 availability.

Keywords: Python , Speech Recognition , Pyttsx3 , Numpy

| DOI: 10.17148/IARJSET.2022.9530