1. From chatbots to dialog systems / Tina Klüwer -- 2. Designing and evaluating interactive agents as social skills tutors for children with autism spectrum disorder / Marissa Milne ... [et al.] -- 3. Designing ECAs to improve robustness of human-machine dialogue / Beatriz López Mencía -- 4. Dialogue act classification exploiting lexical semantics / Nicole Novielli and Carlo Strapparava -- 5. A cognitive dialogue manager for education purposes / Roberto Pirrone, Vincenzo Cannella, Giuseppe Russo and Arianna Pipitone -- 6. Building a social conversational pedagogical agent: design challenges and methodological approaches / Agneta Gulz ... [et al.] -- 7. Design and implementation issues for convincing conversational agents / Markus Löckelt -- 8. Extending conversational agents for task-oriented human-computer dialogue / Pierre Andrews and Silvia Quarteroni -- 9. Affective conversational agents: the role of personality and emotion in spoken interactions / Zoraida Callejas ... [et al.] -- 10. Enhancement of conversational agents by means of multimodal interaction / Ramón López-Cózar -- 11. Embodied conversational virtual patients / Patrick G. Kenny and Thomas D. Parsons -- 12. A conversational personal assistant for senior users / Deborah A. Dahl -- 13. A companionable agent / Roberta Catizone and Yorick Wilks -- 14. Humanizing conversational agents: indisys practical case study in eHealth / J. Gabriel Amores, Pilar Manchón and Guillermo Pérez -- 15. Design and development of an automated voice agent: theory and practice brought together / Pepi Stavropoulou, Dimitris Spiliotopoulos and Georgios Kouroupetroglou -- 16. Conversational agents in language and culture training / Alicia Sagae, W. Lewis Johnson and Andre Valente -- 17. The future of companionable agents / Roberta Catizone and Yorick Wilks -- 18. Future trends for conversational agents / Diana Pérez-Marín and Ismael Pascual-Nieto.