The best part of conversations is the back and forth, the exchange of ideas. With the Alexa skills builder, you can easily build the same experience with multi-turn dialogs. You can build natural interactive dialogs to provide more intelligent responses to user requests.

Delegate Dialog Directive Sample Project http://Alexa.design/skillbuildersample

Use the Skill Builder (Beta) to Define Intents, Slots, and Dialogs https://developer.amazon.com/public/solutions/alexa/alexa-skills-kit/docs/ask-define-the-vui-with-gui

Dialog Interface Reference https://developer.amazon.com/public/solutions/alexa/alexa-skills-kit/docs/dialog-interface-reference