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How to Build a Chatbot with Natural Language Processing

Chatbots help businesses to scale up operations by allowing them to reach a large number of customers at the same time as well as provide 24/7 service. They also offer personalized interactions to every customer which makes the experience more engaging. Businesses all over the world are turning to bots to reduce customer service costs and deliver round-the-clock customer service. NLP has a long way to go, but it already holds a lot of promise for chatbots in their current condition. Once the work is complete, you may integrate AI with NLP which helps the chatbot in expanding its knowledge through each and every interaction with a human. The development of artificial intelligence implies extending the possible areas where Natural Language Processing can be applied.

  1. The NLP for chatbots can provide clients with information about any company’s services, help to navigate the website, order goods or services (Twyla, Botsify, Morph.ai).

  2. The only way to teach a machine about all that, is to let it learn from experience.

  3. Can understand human language, process it, and interact back with humans while performing specific tasks.

  4. Natural language processing is a computational program that converts both spoken and written forms of natural language into inputs or codes that the computer is able to make sense of.

  5. How can you make your chatbot understand intents in order to make users feel like it knows what they want and provide accurate responses.

  6. After predicting the class of the user input, these functions select a random response from the list of intent (i.e. from intents.json file).

The first step in creating an AI chatbot is to better understand a branch of artificial intelligence called natural language processing . Chatbots use intents and entities with natural language processing to understand the meaning of a user’s text messages and voice commands. For new businesses that are looking to invest in a chatbot, this function will be able to kickstart your approach. It’ll help you create a personality for your chatbot, and NLP For Building A Chatbot allow it the ability to respond in a professional, personal manner according to your customers’ intent and the responses they’re expecting. In recent years, we’ve become familiar with chatbots and how beneficial they can be for business owners, employees, and customers alike. Despite what we’re used to and how their actions are fairly limited to scripted conversations and responses, the future of chatbots is life-changing, to say the least.

Natural language interaction

For e.g., “studying” can be reduced to “study” and “writing” can be reduced to “write”, which are actual words. Author is a seasoned writer with a reputation for crafting highly engaging, well-researched, and useful content that is widely read by many of today’s skilled programmers and developers. It is one of the most powerful libraries for performing NLP tasks. It is written in Cython and can perform a variety of tasks like tokenization, stemming, stop word removal, and finding similarities between two documents.


The chatbot will use the OpenWeather API to tell the user what the current weather is in any city of the world, but you can implement your chatbot to handle a use case with another API. Interacting with software can be a daunting task in cases where there are a lot of features. In some cases, performing similar actions requires repeating steps, like navigating menus or filling forms each time an action is performed. Chatbots are virtual assistants that help users of a software system access information or perform actions without having to go through long processes. Many of these assistants are conversational, and that provides a more natural way to interact with the system.

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To do this, you loop through all the entities spaCy has extracted from the statement in the ents property, then check whether the entity label is “GPE” representing Geo-Political Entity. If it is, then you save the name of the entity in a variable called city. In this function, you construct the URL for the OpenWeather API. This URL returns the weather information of the city and provides the result in JSON format. After that, you make a GET request to the API endpoint, store the result in a response variable, and then convert the response to a Python dictionary for easier access.



How to build chatbot using NLP?



  1. Step one: Importing libraries. Imports are critical for successfully organizing your Python code.

  2. Step two: Creating a JSON file.

  3. Step three: Processing data.

  4. Step four: Designing a neural network model.

  5. Step five: Building useful features.

We had to create such a bot that would not only be able to understand human speech like other bots for a website, but also analyze it, and give an appropriate response. Well, the process of in-house chatbot development may also be an issue when you do not have time or expertise in that field. Thus it could be much easier and cost-efficient to hire offshore chatbots developers.

Increase your conversions with chatbot automation!

The AI chatbots have been developed to assist human users on different platforms such as automated chat support or virtual assistants helping with a song or restaurant selection. BotKit is a leading developer tool for building chatbots, apps, and custom integrations for major messaging platforms. BotKit has an open community on Slack with over 7000 developers from all facets of the bot-building world, including the BotKit team. In this tutorial, we will design a conversational interface for our chatbot using natural language processing. Since there is no text pre-processing and classification done here, we have to be very careful with the corpus to make it very generic yet differentiable. This is necessary to avoid misinterpretations and wrong answers displayed by the chatbot.


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Intelligent — they are based on NLP and are able to understand the meaning of the human language. Unlike the scripted bots, they react not to the certain words or constructions but to the meaning of the whole question. Additionally, the AI-based chatbots can learn from every interaction and expand their knowledge automatically. We are going to build a chatbot using deep learning techniques following the retrieval-based concept.

Model Training

The input is the word and the output are the words that are closer in context to the target word. This is also known as speech-to-text recognition as it converts voice data to text which machines use to perform certain tasks. A common example is a voice assistant of a smartphone that carries out tasks like searching for something on the web, calling someone, etc., without manual intervention.


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