inform((_:search,departure,'cambridge');(_:search,type,'Train'))
user
Yes , hi . I am looking for a train to get me out of Cambridge to someplace fun . Can you help me with that ?
request((_:search,destination,?);(_:search,type,'Train'))
system
Of course ! Do you know your destination ?
inform((_:search,arrive_by,'21:30');(_:search,day,'friday');(_:search,destination,'peterborough');(_:search,type,'Train'))
user
Yes , I would like to go to Peterborough . I want to travel on Friday and get there by 21:30 .
system
Is there a time you would like to leave ?
_:search departure cambridge
_:search type Train
_:search departure cambridge
_:search arrive_by 21:30
_:search day friday
_:search destination peterborough
_:search type Train