inform((_:search,arrive_by,'19:30');(_:search,departure,'peterborough');(_:search,type,'Train'))
user
I 'm looking for a train that departs from peterborough and arrives by 19:30
request((_:search,destination,?);(_:search,type,'Train'))
system
Where would you like to go to ?
inform((_:search,day,'sunday');(_:search,destination,'cambridge');(_:search,type,'Train'))
user
I am going to Cambridge on Sunday .
inform((_:result,arrive_by,'19:09');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
There is a train that arrives at 19:09 . Would that do ?
request((_:result,leave_at,?);(_:result,type,'Train'))
user
Sure would .   What time does it depart and how much does it cost ?
inform((_:booking,category,'Train');(_:booking,leave_at,'5:19');(_:booking,ref,'CLPW6OR9');(_:booking,ticket,'13.2 GBP');(_:booking,type,'Booking'))
system
leaves at 5:19 13.2 GBP payable at the station your reference number is CLPW6OR9
inform((_:search,category,'Hotel');(_:search,pricerange,'moderately');(_:search,stars,'4');(_:search,type,'Hotel')) request((_:result,ticket,?);(_:result,type,'Train'))
user
Thanks i appreciate your service . Can you also assist me with finding a place to stay ? The Hotel should be a moderately priced 4 Star Hotel .
request((_:search,area,?);(_:search,type,'Hotel'))
system
What area would you like to stay in ?
inform((_:search,area,'south');(_:search,stars,'4');(_:search,type,'Hotel')) request((_:result,ticket,?);(_:result,type,'Train'))
user
in the south and preferably a 4 star which is moderately priced
inform((_:result,name,'Aylesbray lodge guest house');(_:result,type,'Hotel')) offer((_:booking,type,'Booking'))
system
Aylesbray lodge guest house meets all those requirements , would you like to stay there ?
inform((_:search,day,'the day we arrive');(_:search,people,'5');(_:search,stay,'3');(_:search,type,'Hotel'))
user
Yes , please . Can you book it for 5 people and 3 nights starting from the day we arrive ?
inform((_:booking,ref,'AXD7W0B9');(_:booking,type,'Booking'))
system
Booking was successful . 
 Reference number is : AXD7W0B9
thank()
user
thanks for the service , that is all I need .
system
enjoy your time with us !
_:search arrive_by 19:30
_:search departure peterborough
_:search type Train
_:search arrive_by 19:30
_:search departure peterborough
_:search day sunday
_:search destination cambridge
_:search type Train
_:search arrive_by 19:30
_:search departure peterborough
_:search day sunday
_:search destination cambridge
_:search type Train
_:result arrive_by 19:09
_:result type Train
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:result leave_at ?
_:search arrive_by 19:30
_:search departure peterborough
_:search day sunday
_:search destination cambridge
_:result arrive_by 19:09
_:result type Train
_:system offered _:booking
_:result leave_at ?
_:booking category Train
_:booking leave_at 5:19
_:booking ref CLPW6OR9
_:booking ticket 13.2 GBP
_:booking type Booking
_:search category Hotel
_:search pricerange moderately
_:search stars 4
_:search type Hotel
_:result ticket ?
_:search arrive_by 19:30
_:search departure peterborough
_:search day sunday
_:search destination cambridge
_:result arrive_by 19:09
_:result type Train
_:system offered _:booking
_:result leave_at ?
_:booking category Train
_:booking leave_at 5:19
_:booking ref CLPW6OR9
_:booking ticket 13.2 GBP
_:booking type Booking
_:search category Hotel
_:search pricerange moderately
_:result ticket ?
_:search area south
_:search stars 4
_:search type Hotel
_:search arrive_by 19:30
_:search departure peterborough
_:search destination cambridge
_:result arrive_by 19:09
_:system offered _:booking
_:result leave_at ?
_:booking category Train
_:booking leave_at 5:19
_:booking ref CLPW6OR9
_:booking ticket 13.2 GBP
_:booking type Booking
_:search category Hotel
_:search pricerange moderately
_:result ticket ?
_:search area south
_:search stars 4
_:result name Aylesbray lodge guest house
_:result type Hotel
_:search day the day we arrive
_:search people 5
_:search stay 3
_:search type Hotel
_:search arrive_by 19:30
_:search departure peterborough
_:search destination cambridge
_:result arrive_by 19:09
_:system offered _:booking
_:result leave_at ?
_:booking category Train
_:booking leave_at 5:19
_:booking ticket 13.2 GBP
_:search category Hotel
_:search pricerange moderately
_:result ticket ?
_:search area south
_:search stars 4
_:result name Aylesbray lodge guest house
_:result type Hotel
_:search day the day we arrive
_:search people 5
_:search stay 3
_:search type Hotel
_:booking ref AXD7W0B9
_:booking type Booking