@inproceedings{ai-weng-2008-user,
    title = "User Simulation as Testing for Spoken Dialog Systems",
    author = "Ai, Hua  and
      Weng, Fuliang",
    editor = "Schlangen, David  and
      Hockey, Beth Ann",
    booktitle = "Proceedings of the 9th {SIG}dial Workshop on Discourse and Dialogue",
    month = jun,
    year = "2008",
    address = "Columbus, Ohio",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/landing_page/W08-0126/",
    pages = "164--171"
}