inform((_:search,destination,'Petersborough');(_:search,type,'Train'))
user
I am looking for a train to Petersborough .
canthelp((_:search,destination,'peterborough');(_:search,type,'Train')) request((_:search,departure,?);(_:search,destination,?);(_:search,type,'Train'))
system
I 'm sorry there are no trains to petersborough .   Is there another location I can check for you ?
inform((_:search,day,'thursday');(_:search,departure,'cambridge');(_:search,destination,'petersborough');(_:search,type,'Train'))
user
No , I need a train from Cambridge to petersborough on Thursday .
inform((_:result,count,'38');(_:result,type,'Train')) request((_:search,arrive_by,?);(_:search,leave_at,?);(_:search,type,'Train'))
system
There are 38 trains . What time do you want to leave or to arrive by , please ?
inform((_:search,leave_at,'08:30');(_:search,type,'Train'))
user
I just need to leave by 08:30 .
inform((_:result,arrive_by,'9:24');(_:result,day,'Thursday');(_:result,destination,'Peterborough');(_:result,leave_at,'8:34');(_:result,type,'Train'))
system
There is a 8:34 train to Peterborough on Thursday . I would arrive at 9:24 .
inform((_:search,people,'6');(_:search,type,'Train'))
user
Yes that would be fine please book for 6 people .
inform((_:booking,category,'Train');(_:booking,ref,'0ZN13UIU');(_:booking,ticket,'99 GBP');(_:booking,type,'Booking'))
system
Booking was successful , the total fee is 99 GBP payable at the station . 
 Reference number is : 0ZN13UIU
thank()
user
Thank you that is all I needed today .
system
You 're very welcome ! Have a great day & enjoy your trip !
_:search destination Petersborough
_:search type Train
_:system canthelp _:search/d3622a99
_:search/d3622a99 destination peterborough
_:search/d3622a99 type Train
_:search day thursday
_:search departure cambridge
_:search destination petersborough
_:search type Train
_:system canthelp _:search/d3622a99
_:search/d3622a99 destination peterborough
_:search/d3622a99 type Train
_:search day thursday
_:search departure cambridge
_:search destination petersborough
_:result count 38
_:result type Train
_:search arrive_by ?
_:search leave_at 08:30
_:search type Train
_:system canthelp _:search/d3622a99
_:search/d3622a99 destination peterborough
_:search/d3622a99 type Train
_:search day thursday
_:search departure cambridge
_:search destination petersborough
_:result count 38
_:search arrive_by ?
_:search leave_at 08:30
_:result arrive_by 9:24
_:result day Thursday
_:result destination Peterborough
_:result leave_at 8:34
_:result type Train
_:search people 6
_:search type Train
_:system canthelp _:search/d3622a99
_:search/d3622a99 destination peterborough
_:search/d3622a99 type Train
_:search day thursday
_:search departure cambridge
_:search destination petersborough
_:result count 38
_:search arrive_by ?
_:search leave_at 08:30
_:result arrive_by 9:24
_:result day Thursday
_:result destination Peterborough
_:result leave_at 8:34
_:result type Train
_:search people 6
_:search type Train
_:booking category Train
_:booking ref 0ZN13UIU
_:booking ticket 99 GBP
_:booking type Booking