In the paper we present the modules of the Slovenian spoken dialog system, developed within the joint project in multilingual speech recognition and understanding ``Spoken Queries in European Languages'' (SQEL- Copernicus -1634). The system can handle spontaneous speech and provide the user with correct information in the domain of air flight information retrieval. The major modules of the system perform word recognition, linguistic analysis, dialog management and speech synthesis. Some results with respect to word accuracy, semantic accuracy and dialog success rate are given, too.