inform((_:search,type,'Hospital'))
user
Can you give me the address to the hospital in Cambridge ?
inform((_:result,address,'Hills Rd , Cambridge');(_:result,postcode,'CB20QQ');(_:result,type,'Hospital'))
system
The address is Hills Rd , Cambridge 
 Postcode 	 : 	 CB20QQ
inform((_:search,day,'sunday');(_:search,departure,'peterborough');(_:search,type,'Train'))
user
I am actually looking for a train on sunday from peterborough .
request((_:search,destination,?);(_:search,type,'Train'))
system
What is your destination ?
inform((_:search,destination,'cambridge');(_:search,type,'Train'))
user
Going to Cambridge .
request((_:search,leave_at,?);(_:search,type,'Train'))
system
At what time do you want to travel ?
inform((_:search,arrive_by,'11:45');(_:search,people,'5');(_:search,type,'Train'))
user
I would like to arrive by 11:45 . I will need to buy 5 tickets once we find a train .
offer((_:booking,arrive_by,'7:38');(_:booking,category,'Train');(_:booking,id,'TR7721');(_:booking,type,'Booking'))
system
I have train TR7721 arriving at 7:38 would you like that one ?
inform((_:search,people,'five');(_:search,type,'Train')) request((_:result,ref,?);(_:result,type,'Train'))
user
Yes , five tickets , please . What is the reference number ?
system
Your reference number is CIGYXAW9 . Do you need anything else ?
_:search type Hospital
_:result address Hills Rd , Cambridge
_:result postcode CB20QQ
_:result type Hospital
_:search day sunday
_:search departure peterborough
_:search type Train
_:result address Hills Rd , Cambridge
_:result postcode CB20QQ
_:result type Hospital
_:search day sunday
_:search departure peterborough
_:search destination cambridge
_:search type Train
_:result address Hills Rd , Cambridge
_:result postcode CB20QQ
_:result type Hospital
_:search day sunday
_:search departure peterborough
_:search destination cambridge
_:search leave_at ?
_:search arrive_by 11:45
_:search people 5
_:search type Train
_:result address Hills Rd , Cambridge
_:result postcode CB20QQ
_:result type Hospital
_:search day sunday
_:search departure peterborough
_:search destination cambridge
_:search leave_at ?
_:search arrive_by 11:45
_:system offered _:booking
_:booking arrive_by 7:38
_:booking category Train
_:booking id TR7721
_:booking type Booking
_:search people five
_:search type Train
_:result ref ?
_:result type Train