If you are a NIST user but aren't sure which system you've been assigned to, you must contact NIST before proceeding any further. The CMU Communicator project is exploring advanced dialog management architectures for complex problem solving tasks.
Some recent papers describe our work.
You may also be interested in finding out about our Movieline system. Note that your call will be recorded for development purposes and may be shared with other researchers. We also have instructions for using the system. You can obtain the source code for the Communicator system. Check out the requirements for running Communicator.