inform((_:search,food,'british');(_:search,pricerange,'cheap');(_:search,type,'Restaurant')) request((_:result,ticket,?);(_:result,type,'Train'))
user
I am looking for a restaurant in the cheap price range that serves British food .
canthelp((_:search,type,'Restaurant')) request((_:search,food,?);(_:search,type,'Restaurant'))
system
I am sorry there are no restaurants that meet those requirements . Would you like to try another type of food ?
inform((_:search,area,'centre');(_:search,day,'saturday');(_:search,duration,'17:15');(_:search,food,'british');(_:search,people,'one');(_:search,type,'Restaurant'))
user
What British restaurants are available in the centre to choose from ? I 'd like to book a table at 17:15 for one on Saturday .
inform((_:booking,name,'oak bistro');(_:booking,type,'Booking');(_:result,pricerange,'moderately priced');(_:result,type,'Restaurant'))
system
I can book a table for you at the oak bistro . They are moderately priced and you wo n't be disappointed
user
Sounds great - can you book a table there ?
request((_:booking,day,?);(_:booking,duration,?);(_:booking,people,?);(_:booking,type,'Booking')) thank()
system
Absolutely ! For how many people and what day / time ?
inform((_:search,day,'saturday');(_:search,duration,'17:15');(_:search,type,'Restaurant'))
user
Just myself .   I 'd like to eat at 17:15 on Saturday .
canthelp((_:search,type,'Restaurant'))
system
The British places are all booked up then . Another time or place ?
inform((_:search,duration,'16:15');(_:search,type,'Restaurant'))
user
How about 16:15 instead ?
system
Booking was successful . The table will be reserved for 15 minutes . 
 Reference number is : 8SS1T80V .
_:search food british
_:search pricerange cheap
_:search type Restaurant
_:result ticket ?
_:result type Train
_:search pricerange cheap
_:result ticket ?
_:result type Train
_:system canthelp _:search/bc8c7b02
_:search/bc8c7b02 type Restaurant
_:search area centre
_:search day saturday
_:search duration 17:15
_:search food british
_:search people one
_:search type Restaurant
_:search pricerange cheap
_:result ticket ?
_:system canthelp _:search/bc8c7b02
_:search/bc8c7b02 type Restaurant
_:search area centre
_:search day saturday
_:search duration 17:15
_:search food british
_:search people one
_:search type Restaurant
_:booking name oak bistro
_:booking type Booking
_:result pricerange moderately priced
_:result type Restaurant
_:search pricerange cheap
_:result ticket ?
_:system canthelp _:search/bc8c7b02
_:search/bc8c7b02 type Restaurant
_:search area centre
_:search food british
_:search people one
_:booking name oak bistro
_:result pricerange moderately priced
_:result type Restaurant
_:booking day ?
_:booking duration ?
_:booking people ?
_:booking type Booking
_:search day saturday
_:search duration 17:15
_:search type Restaurant
_:search pricerange cheap
_:result ticket ?
_:system canthelp _:search/bc8c7b02
_:search/bc8c7b02 type Restaurant
_:search area centre
_:search food british
_:search people one
_:booking name oak bistro
_:result pricerange moderately priced
_:result type Restaurant
_:booking day ?
_:booking duration ?
_:booking people ?
_:booking type Booking
_:search day saturday
_:system canthelp _:search/da26cd6f
_:search/da26cd6f type Restaurant
_:search duration 16:15
_:search type Restaurant