Natural Language Dialogue Service for Appointment Scheduling Agents Stephan Busemann author Thierry Declerck author Abdel Kader Diagne author Luca Dini author Judith Klein author Sven Schmeier author 1997-03 text Fifth Conference on Applied Natural Language Processing Association for Computational Linguistics Washington, DC, USA conference publication busemann-etal-1997-natural 10.3115/974557.974563 https://aclanthology.org/A97-1006/ 1997-03 25 32