A chatbot is a computer program that simulates human conversation through text or voice interactions. They can be integrated into various platforms, such as websites, messaging apps, and mobile apps, to provide customer service, answer frequently asked questions, and automate repetitive tasks. Chatbots use natural language processing (NLP) and machine learning (ML) to understand and respond to user inputs.

Many companies across various industries use chatbots to improve customer service, automate repetitive tasks and increase engagement with customers. Some examples include:

• Retail companies, such as H&M, Sephora, and 1-800-Flowers, use chatbots to assist with shopping and customer service.
• Banking and finance companies, such as Wells Fargo and American Express, use chatbots to provide account information and help with transactions.
• Healthcare companies, such as Cleveland Clinic and UnitedHealth Group, use chatbots to provide medical information and triage services.
• Technology companies, such as Facebook and Slack, offer chatbot development platforms for businesses to build their own chatbots.
• Travel companies, such as Kayak and Expedia, use chatbots to help users find and book travel arrangements.
• Food delivery companies, such as Domino's Pizza, use chatbots to take food orders and provide order tracking information.

This is just a small sample of the many companies that use chatbots. They are becoming more and more popular as a way to improve customer service and automate repetitive task.