You can create an SMS chatbot using Amazon Lex and Twilio SMS to provide a convenient customer service experience. To start, you need a free Twilio account and a Twilio Phone Number with SMS capability, as well as a free AWS account. Amazon Lex is an artificial intelligence service that allows developers to create voice or text-based conversational interfaces. You can use one of the demo bots provided by LexV2 to illustrate how to connect a chatbot to Twilio SMS. After creating your bot, you need to publish it and configure its versioning system, including aliases for easy testing and deployment. The integration with Twilio SMS enables users to interact with your bot via SMS without installing any applications on their phones. By combining Amazon Lex and Twilio SMS technologies, you can develop smart chatbots that leverage machine learning to capture user intent and values.