Preface.- Contributing Authors.- Trends and Challenges in Discourse and Dialogue by Laila Dybkj r and Wolfgang Minker.- Chapter 1 Where Do We Go From Here? By Roberto Pieraccini and Juan M. Huerta.- Chapter 2 Designing Speech-controlled Media File Selection for Automotive Systems by Yu-Fang H.Wang and Stefan W. Hamerich.- Chapter 3 A Virtual Human Dialogue Model for Non-Team Interaction by David Traum, William Swartout, Jonathan Gratch and Stacy Marsella.-...