PizzaPal: Conversational Pizza Ordering using a High-Density Conversational AI Platform Antoine Raux author Yi Ma author Paul Yang author Felicia Wong author 2018-11 text Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing: System Demonstrations Eduardo Blanco editor Wei Lu editor Association for Computational Linguistics Brussels, Belgium conference publication raux-etal-2018-pizzapal 10.18653/v1/D18-2026 https://aclanthology.org/D18-2026/ 2018-11 151 156