inform((_:search,arrive_by,'18:30');(_:search,destination,'peterborough');(_:search,type,'Train'))
user
am looking for a train it should arrive by 18:30 and should go to peterborough
inform((_:result,id,'TR9859');(_:result,ticket,'16.50 pounds');(_:result,type,'Train')) reqmore()
system
TR9859 cost 	 16.50 pounds . Is there anything else ?
inform((_:search,day,'sunday');(_:search,departure,'cambridge');(_:search,type,'Train'))
user
I need to leave on Sunday from Cambridge .
inform((_:result,arrive_by,'18:30');(_:result,count,'2');(_:result,departure,'Cambridge');(_:result,destination,'Peterborough');(_:result,type,'Train')) request((_:search,leave_at,?);(_:search,type,'Train'))
system
There are two trains that arrive in Peterborough by 18:30 . What time are you planning to leave Cambridge ?
inform((_:search,arrive_by,'18:30');(_:search,destination,'peterborough');(_:search,type,'Train'))
user
I just need to arrive by 18:30 in peterborough the departure time does n't matter .
inform((_:result,arrive_by,'17:56');(_:result,arrive_by,'18:24');(_:result,id,'TR2913');(_:result,id,'TR8293');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
TR8293 arrives at 17:56 and TR2913 arrives at 18:24 . Would you like me to book tickets on one of them ?
inform((_:search,people,'8');(_:search,type,'Train')) request((_:result,ref,?);(_:result,type,'Train'))
user
I need tickets for 8 people . Can you book and give me the reference number ?
reqmore() inform((_:booking,category,'Train');(_:booking,id,'TR 8293');(_:booking,ref,'EPABNNPD');(_:booking,type,'Booking'))
system
I booked TR 8293 and you reference number is EPABNNPD . Is there anything else ?
thank()
user
No that is all .   Thank you .
system
Thank you for using our services .
_:search arrive_by 18:30
_:search destination peterborough
_:search type Train
_:search arrive_by 18:30
_:search destination peterborough
_:result id TR9859
_:result ticket 16.50 pounds
_:result type Train
_:system inquired _:user
_:search day sunday
_:search departure cambridge
_:search type Train
_:result id TR9859
_:result ticket 16.50 pounds
_:system inquired _:user
_:search day sunday
_:search departure cambridge
_:result arrive_by 18:30
_:result count 2
_:result departure Cambridge
_:result destination Peterborough
_:result type Train
_:search leave_at ?
_:search arrive_by 18:30
_:search destination peterborough
_:search type Train
_:result ticket 16.50 pounds
_:system inquired _:user
_:search day sunday
_:search departure cambridge
_:result count 2
_:result departure Cambridge
_:result destination Peterborough
_:search leave_at ?
_:search arrive_by 18:30
_:search destination peterborough
_:result arrive_by 17:56
_:result arrive_by 18:24
_:result id TR2913
_:result id TR8293
_:result type Train
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:search people 8
_:search type Train
_:result ref ?
_:result ticket 16.50 pounds
_:search day sunday
_:search departure cambridge
_:result count 2
_:result departure Cambridge
_:result destination Peterborough
_:search leave_at ?
_:search arrive_by 18:30
_:search destination peterborough
_:result arrive_by 17:56
_:result arrive_by 18:24
_:result id TR2913
_:result id TR8293
_:result type Train
_:system offered _:booking
_:search people 8
_:search type Train
_:result ref ?
_:system inquired _:user
_:booking category Train
_:booking id TR 8293
_:booking ref EPABNNPD
_:booking type Booking