inform((_:search,departure,'cambridge');(_:search,leave_at,'6:30');(_:search,type,'Train'))
user
I would like to find a train leaving Cambridge after 6:30 PM . Can you help me ?
thank() request((_:search,destination,?);(_:search,type,'Train'))
system
I would be happy to help you today . What is your destination ?
inform((_:search,day,'sunday');(_:search,destination,'stansted airport');(_:search,type,'Train'))
user
The destination is stansted airport , and I would like to leave on Sunday .
inform((_:result,arrive_by,'17:08');(_:result,destination,'Stansted');(_:result,leave_at,'06:40');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
I have a 06:40 that arrives Stansted at 17:08 . Would you like me to book that for you .
user
I apologize . I may have confused you a bit . I would like to leave after 18:30 .
system
There is no train leaving at the time you require , unless you try a different day , would you like to try a different day ?
_:search departure cambridge
_:search leave_at 6:30
_:search type Train
_:search departure cambridge
_:search leave_at 6:30
_:search day sunday
_:search destination stansted airport
_:search type Train
_:search departure cambridge
_:search leave_at 6:30
_:search day sunday
_:search destination stansted airport
_:search type Train
_:result arrive_by 17:08
_:result destination Stansted
_:result leave_at 06:40
_:result type Train
_:system offered _:booking
_:booking category Train
_:booking type Booking