Building a simple SMS bot

Let's now build the SMS platform interface for the chatbot. To bear with the complexity, let us do this in two steps. First, let us build a bot to simply send SMS text messages to a mobile number. This could be a message concerning the status of a train arriving at a station or the next train to a certain destination from a given station. Second, we will build a two-way chatbot that can receive messages from users and respond to them appropriately. To do this, we will use a service called Twilio. Twilio is a developer platform for communications enabling developers to add messaging, voice, and video capabilities to their software. We will explore how we can build notification bots and chatbots using Twilio's messaging infrastructure.

Getting started

To get started with Twilio, perform the following steps:

1. Go to www.twilio.com, click Sign Up and register yourself for a free trial account.
2. Once you have registered, go over to the console page at www.twilio.com/console...