@inproceedings{ward-hollingsed-aldazsalmon:2004:SIGDIAL,
  author    = {Ward, Karen  and  Hollingsed, Tasha  and  Aldaz Salmon, Javier A.},
  title     = {Acknowledgment Use with Synthesized and Recorded Prompts},
  booktitle = {Proceedings of the 5th SIGdial Workshop on Discourse and Dialogue },
  editor = {Michael Strube and Candy Sidner},
  year      = 2004,
  month     = {April 30 - May 1},
  address   = {Cambridge, Massachusetts, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {85--88}
}