Robust and Flexible Mixed-Initiative Dialogue for Telephone Services Jose Relano Gil author Daniel Tapias author Maria C Gancedo author Marcela Charfuelan author Luis A Hernandez author 1999-06 text Ninth Conference of the European Chapter of the Association for Computational Linguistics Henry S Thompson editor Alex Lascarides editor Association for Computational Linguistics Bergen, Norway conference publication relano-gil-etal-1999-robust https://aclanthology.org/E99-1051/ 1999-06 287 290