inform((_:search,food,'north american');(_:search,pricerange,'moderately');(_:search,type,'Restaurant'))
user
Can you help me find a moderately priced restaurant that serves North American food ? Thanks .
select((_:result,count,'1');(_:result,pricerange,'expensive');(_:result,type,'Restaurant')) offer((_:booking,type,'Booking')) canthelp((_:search,food,'North American');(_:search,pricerange,'moderately priced');(_:search,type,'Restaurant'))
system
Unfortunately , I am unable to locate a moderately priced North American restaurant . I did find an expensive one , would you be interested in that ?
inform((_:search,food,'italian');(_:search,type,'Restaurant'))
user
No . How about Italian food ?
request((_:search,area,?);(_:search,type,'Restaurant')) inform((_:result,count,'5');(_:result,food,'italian');(_:result,pricerange,'moderately priced');(_:result,type,'Restaurant'))
system
Sure .   There are five moderately priced italian restaurants .   Would you prefer a certain part of town ?
inform((_:search,area,'center');(_:search,type,'Restaurant'))
user
Perhaps the center ? But I don;t think I have a preference .
offer((_:booking,type,'Booking')) inform((_:result,area,'centre');(_:result,food,'Italian');(_:result,name,'Pizza Express');(_:result,pricerange,'moderately priced');(_:result,type,'Restaurant'))
system
Pizza Express is a great place that serves moderately priced Italian in the city centre . Would you like me to make you a reservation ?
inform((_:search,day,'sunday');(_:search,duration,'15:00');(_:search,people,'5');(_:search,type,'Restaurant'))
user
Yes . Please reserve for 5 people on Sunday at 15:00 .
inform((_:booking,type,'Booking'))
system
I was able to book for you . Do you need a reference number ?
inform((_:search,destination,'leicester');(_:search,leave_at,'18:30');(_:search,type,'Train'))
user
Yes , I do need it .   I 'm also looking for a train that goes to Leicester after 18:30 .   Is there anything available ?
request((_:search,day,?);(_:search,type,'Train'))
system
What day do you need to leave ?
inform((_:search,day,'monday');(_:search,departure,'cambridge');(_:search,type,'Train'))
user
I need to leave on monday and depart from cambridge .
inform((_:result,count,'5');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
There are 5 different trains on that day . Would you like me to book one of them ?
inform((_:search,leave_at,'18:30');(_:search,people,'5');(_:search,type,'Train'))
user
Yes please . I just need tickets for all 5 of us . as close to 18:30 as possible .
inform((_:booking,category,'Train');(_:booking,id,'TR0335');(_:booking,ref,'13V7H457');(_:booking,ticket,'189 GBP');(_:booking,type,'Booking'))
system
the train i d is TR0335 . Booking was successful , the total fee is 189 GBP payable at the station . 
 Reference number is   : 13V7H457 .
thank()
user
Thanks that 's all I need today
system
Thank you for contacting us and have a great day .
_:search food north american
_:search pricerange moderately
_:search type Restaurant
_:search pricerange moderately
_:result count 1
_:result pricerange expensive
_:result type Restaurant
_:system offered _:booking
_:booking type Booking
_:system canthelp _:search/66d71224
_:search/66d71224 food North American
_:search/66d71224 pricerange moderately priced
_:search/66d71224 type Restaurant
_:search food italian
_:search type Restaurant
_:search pricerange moderately
_:system offered _:booking
_:booking type Booking
_:system canthelp _:search/66d71224
_:search/66d71224 food North American
_:search/66d71224 pricerange moderately priced
_:search/66d71224 type Restaurant
_:search food italian
_:result count 5
_:result food italian
_:result pricerange moderately priced
_:result type Restaurant
_:search area center
_:search type Restaurant
_:search pricerange moderately
_:system offered _:booking
_:booking type Booking
_:system canthelp _:search/66d71224
_:search/66d71224 food North American
_:search/66d71224 pricerange moderately priced
_:search/66d71224 type Restaurant
_:search food italian
_:result count 5
_:search area center
_:result area centre
_:result food Italian
_:result name Pizza Express
_:result pricerange moderately priced
_:result type Restaurant
_:search day sunday
_:search duration 15:00
_:search people 5
_:search type Restaurant
_:search pricerange moderately
_:system offered _:booking
_:system canthelp _:search/66d71224
_:search/66d71224 food North American
_:search/66d71224 pricerange moderately priced
_:search/66d71224 type Restaurant
_:search food italian
_:result count 5
_:search area center
_:result area centre
_:result food Italian
_:result name Pizza Express
_:result pricerange moderately priced
_:result type Restaurant
_:search day sunday
_:search duration 15:00
_:search people 5
_:booking type Booking
_:search destination leicester
_:search leave_at 18:30
_:search type Train
_:search pricerange moderately
_:system offered _:booking
_:system canthelp _:search/66d71224
_:search/66d71224 food North American
_:search/66d71224 pricerange moderately priced
_:search/66d71224 type Restaurant
_:search food italian
_:result count 5
_:search area center
_:result area centre
_:result food Italian
_:result name Pizza Express
_:result pricerange moderately priced
_:result type Restaurant
_:search duration 15:00
_:search people 5
_:booking type Booking
_:search destination leicester
_:search leave_at 18:30
_:search day monday
_:search departure cambridge
_:search type Train
_:search pricerange moderately
_:system offered _:booking
_:system canthelp _:search/66d71224
_:search/66d71224 food North American
_:search/66d71224 pricerange moderately priced
_:search/66d71224 type Restaurant
_:search food italian
_:search area center
_:result area centre
_:result food Italian
_:result name Pizza Express
_:result pricerange moderately priced
_:search duration 15:00
_:booking type Booking
_:search destination leicester
_:search day monday
_:search departure cambridge
_:result count 5
_:result type Train
_:booking category Train
_:search leave_at 18:30
_:search people 5
_:search type Train
_:search pricerange moderately
_:system offered _:booking
_:system canthelp _:search/66d71224
_:search/66d71224 food North American
_:search/66d71224 pricerange moderately priced
_:search/66d71224 type Restaurant
_:search food italian
_:search area center
_:result area centre
_:result food Italian
_:result name Pizza Express
_:result pricerange moderately priced
_:search duration 15:00
_:search destination leicester
_:search day monday
_:search departure cambridge
_:result count 5
_:result type Train
_:search leave_at 18:30
_:search people 5
_:search type Train
_:booking category Train
_:booking id TR0335
_:booking ref 13V7H457
_:booking ticket 189 GBP
_:booking type Booking