inform((_:search,category,'nightclub');(_:search,type,'Attraction'))
user
I 'm looking for a nightclub to visit .
inform((_:result,address,'Heidelberg Gardens in Lion Yard');(_:result,area,'centre');(_:result,category,'nightclubs');(_:result,name,'Ballare');(_:result,type,'Attraction')) reqmore()
system
Most of the nightclubs are in the centre area . Ballare is located at Heidelberg Gardens in Lion Yard . Would like to hear about some others ?
request((_:result,postcode,?);(_:result,type,'Attraction')) inform((_:search,area,'centre');(_:search,type,'Attraction'))
user
No , but could you tell me more about that one ? is it in the centre ? What 's the postcode ?
inform((_:result,area,'centre');(_:result,postcode,'cb23na');(_:result,type,'Attraction'))
system
It is located in the centre . The postcode is cb23na .
inform((_:search,food,'chinese');(_:search,pricerange,'cheap');(_:search,type,'Restaurant'))
user
I 'm also looking for a restaurant that serves cheap chinese food .
request((_:search,area,?);(_:search,type,'Restaurant')) inform((_:result,count,'4');(_:result,type,'Restaurant'))
system
You have four options . Do you have an area preference ?
inform((_:search,area,'centre');(_:search,type,'Restaurant'))
user
I would like it to be in the centre .
inform((_:result,name,'Charlie Chan');(_:result,type,'Restaurant'))
system
How about Charlie Chan ? I eat there sometimes .
inform((_:search,day,'friday');(_:search,duration,'19:00');(_:search,people,'4');(_:search,type,'Restaurant'))
user
Sure , thank you ! Will you please book a table for 4 people at 19:00 on Friday ?
reqmore() inform((_:booking,ref,'TLAT8P6I');(_:booking,type,'Booking'))
system
Booking was successful . The table will be reserved for 15 minutes . 
 Reference number is : TLAT8P6I .   What else can I do for you today ?
thank()
user
That will be all , thank you very much for your help !
system
Glad to have been of help . Thank you for using the Cambridge TownInfo centre . Have a great day .
_:search category nightclub
_:search type Attraction
_:search category nightclub
_:result address Heidelberg Gardens in Lion Yard
_:result area centre
_:result category nightclubs
_:result name Ballare
_:result type Attraction
_:system inquired _:user
_:result postcode ?
_:search area centre
_:search type Attraction
_:search category nightclub
_:result address Heidelberg Gardens in Lion Yard
_:result category nightclubs
_:result name Ballare
_:system inquired _:user
_:search area centre
_:result area centre
_:result postcode cb23na
_:result type Attraction
_:search food chinese
_:search pricerange cheap
_:search type Restaurant
_:search category nightclub
_:result address Heidelberg Gardens in Lion Yard
_:result category nightclubs
_:result name Ballare
_:system inquired _:user
_:result area centre
_:result postcode cb23na
_:search food chinese
_:search pricerange cheap
_:result count 4
_:result type Restaurant
_:search area centre
_:search type Restaurant
_:search category nightclub
_:result address Heidelberg Gardens in Lion Yard
_:result category nightclubs
_:system inquired _:user
_:result area centre
_:result postcode cb23na
_:search food chinese
_:search pricerange cheap
_:result count 4
_:search area centre
_:result name Charlie Chan
_:result type Restaurant
_:search day friday
_:search duration 19:00
_:search people 4
_:search type Restaurant
_:search category nightclub
_:result address Heidelberg Gardens in Lion Yard
_:result category nightclubs
_:result area centre
_:result postcode cb23na
_:search food chinese
_:search pricerange cheap
_:result count 4
_:search area centre
_:result name Charlie Chan
_:result type Restaurant
_:search day friday
_:search duration 19:00
_:search people 4
_:search type Restaurant
_:system inquired _:user
_:booking ref TLAT8P6I
_:booking type Booking