In this section, you will learn about the fundamentals of conversation, because a good conversation in VUIs can bring a compelling user experience to an application. You will utilize the design principles covered in this section to build a chatbot in Chapter 2, Building an FAQs Chatbot, home assistant devices such as Google Home in Chapter 3, Building a Fortune Cookie Application, Amazon Echo in Chapter 6, Building a Cooking Application Using Alexa, and a voice-enabled application for cars using Google Auto in Chapter 9, Building a Voice Enabled Podcast for the Car.