PEGASUS
What is Pegasus?What is Pegasus?
A conversational interface that provides information about flight
status, Pegasus enables users to obtain flight status information over
a telephone line. Pegasus can provide information about flights
within the United States, and can answer questions about departure and
arrival time for flights that have taken off, landed, or filed a
flight plan on the day the user queries the system. The knowledge
Pegasus uses for answering queries about flight status is updated
continually throughout the day by one of the leading providers of
flight status information, RLM Software, Inc.
What does Pegasus know?
Pegasus has access to data from RLM, which contains information about
the estimated departure and arrival times for flights that are either
in the air or have filed a flight plan. In addition, Pegasus
maintains information about actual arrival time for flights that have
landed at any point during the current calendar day.
Because users do not always know the airline and flight number for a flight they are meeting, Pegasus also has information on flight schedules. This enables the user to ask about flights between two cities arriving around a particular time. Once the user narrows the search to one flight, the system can then consult the real-time status database to provide up-to-date arrival information.
How do I talk to Pegasus?
When talking with Pegasus, users must pay special attention to speaking
style, noise, and correcting mistakes. Please consult the JUPITER homepage for further information.
Pegasus converses with the user until sufficient information is available to construct a complete schedule or status query. Here are some example dialogues with the system:
USER: CAN YOU TELL ME THE STATUS OF UNITED FLIGHT NINE?
Pegasus: United flight 9 from Kennedy is expected in Los Angeles at 11:43 a.m. local time. It is 47 minutes minutes ahead of schedule. What else would you like to know?
USER: ARE THERE ANY FLIGHTS FROM CHICAGO TO BOSTON ARRIVING AROUND NOON?
Pegasus: There are 2 flights from Chicago arriving in Boston at 12 o'clock pm local time, United flight 506 scheduled to arrive at 11:53 a.m. and American flight 744 scheduled to arrive at 11:59 a.m. Please select one.
USER: WILL THE SECOND ONE BE ON TIME?
Pegasus: American flight 744 from O'Hare landed in Boston at 11:42 a.m. local time, 17 minutes minutes ahead of schedule. Is there something else you'd like to know?
How do I call Pegasus?
Here are some basic instructions:
How does Pegasus work?
During a call, Pegasus utilizes a set of core speech technologies
developed by the SLS group the recognize, understand, and respond to
each request from the user. To find requested flight information,
Pegasus has access to flight status information that is updated
continually throughout the day by RLM Software, Inc. With carefully
planned dialogue management,
Pegasus can help a user find the flight status of a particular flight,
even if the user has forgotten the flight number.
Comments or questions to bug-galaxy@lists.csail.mit.edu