inform((_:search,food,'sri lankan');(_:search,pricerange,'moderately');(_:search,type,'Restaurant'))
user
Can you help me find a restaurant that serves sri lankan food that is moderately priced ?
request((_:search,food,?);(_:search,type,'Restaurant')) canthelp((_:search,area,'anywhere in Cambridge');(_:search,food,'Sri Lankan');(_:search,type,'Restaurant'))
system
I 'm sorry , but there are no Sri Lankan restaurants anywhere in Cambridge . Would you like to try a different cuisine ?
user
Are you sure ? I really thought there were some there .
canthelp((_:search,area,'anywhere in Cambridge');(_:search,food,'sri lankan');(_:search,type,'Restaurant'))
system
Yes , I have doubled checked and there are no sri lankan restaurants anywhere in Cambridge .
inform((_:search,food,'british');(_:search,type,'Restaurant'))
user
Okay , how about one that serves British food ?
request((_:search,area,?);(_:search,type,'Restaurant')) inform((_:result,area,'centre');(_:result,count,'4');(_:result,food,'British');(_:result,type,'Restaurant'))
system
There are 4 British restaurants in the centre area of town and one in the west . Which area would you prefer ?
inform((_:search,day,'thursday');(_:search,duration,'14:30');(_:search,people,'1');(_:search,type,'Restaurant'))
user
Could you recommend one ? I will be needing a table for 1 at 14:30 on Thursday .
request((_:search,pricerange,?);(_:search,type,'Restaurant'))
system
What price range would you like ?
inform((_:search,pricerange,'moderate');(_:search,type,'Restaurant'))
user
moderate price , please .
inform((_:booking,ref,'3NX7QMU8');(_:booking,type,'Booking'))
system
Booking was successful . The table will be reserved for 15 minutes . 
 Reference number is : 3NX7QMU8 .
inform((_:search,area,'centre');(_:search,category,'college');(_:search,type,'Attraction')) request((_:result,postcode,?);(_:result,type,'Attraction'))
user
I also need to find a college in the town centre to visit . If you can provide me with the name and post code , that would be great .
inform((_:result,name,'Emmanuel College');(_:result,postcode,'cb23ap');(_:result,type,'Attraction')) reqmore() inform((_:booking,name,'Restaurant One Seven');(_:booking,type,'Booking'))
system
Sorry , I forgot to say that your booking is at Restaurant One Seven . Emmanuel College is in post code cb23ap . Would you like to hear about some of the others , too ?
user
Yes , please let me know about some of the others .
inform((_:result,name,'Christ College');(_:result,name,'Corpus Christi');(_:result,name,'downing college');(_:result,postcode,'cb21dq');(_:result,postcode,'cb21rh');(_:result,postcode,'cb23bu');(_:result,type,'Attraction')) reqmore()
system
There 's Christ College postcode cb23bu , Corpus Christi postcode cb21rh , and downing college at postcode cb21dq . Is there anything else I can help you with ?
thank()
user
You have covered everything .   Thank you .
system
Have a great day and trip ! Good bye .
_:search food sri lankan
_:search pricerange moderately
_:search type Restaurant
_:search pricerange moderately
_:search food ?
_:search type Restaurant
_:system canthelp _:search/d860f139
_:search/d860f139 area anywhere in Cambridge
_:search/d860f139 food Sri Lankan
_:search/d860f139 type Restaurant
_:search pricerange moderately
_:system canthelp _:search/d860f139
_:search/d860f139 area anywhere in Cambridge
_:search/d860f139 food Sri Lankan
_:search/d860f139 type Restaurant
_:system canthelp _:search/4ea737ef
_:search/4ea737ef area anywhere in Cambridge
_:search/4ea737ef food sri lankan
_:search/4ea737ef type Restaurant
_:search food british
_:search type Restaurant
_:search pricerange moderately
_:system canthelp _:search/d860f139
_:search/d860f139 area anywhere in Cambridge
_:search/d860f139 food Sri Lankan
_:search/d860f139 type Restaurant
_:system canthelp _:search/4ea737ef
_:search/4ea737ef area anywhere in Cambridge
_:search/4ea737ef food sri lankan
_:search/4ea737ef type Restaurant
_:search food british
_:search area ?
_:result area centre
_:result count 4
_:result food British
_:result type Restaurant
_:search day thursday
_:search duration 14:30
_:search people 1
_:search type Restaurant
_:system canthelp _:search/d860f139
_:search/d860f139 area anywhere in Cambridge
_:search/d860f139 food Sri Lankan
_:search/d860f139 type Restaurant
_:system canthelp _:search/4ea737ef
_:search/4ea737ef area anywhere in Cambridge
_:search/4ea737ef food sri lankan
_:search/4ea737ef type Restaurant
_:search food british
_:search area ?
_:result area centre
_:result count 4
_:result food British
_:result type Restaurant
_:search day thursday
_:search duration 14:30
_:search people 1
_:search pricerange moderate
_:search type Restaurant
_:system canthelp _:search/d860f139
_:search/d860f139 area anywhere in Cambridge
_:search/d860f139 food Sri Lankan
_:search/d860f139 type Restaurant
_:system canthelp _:search/4ea737ef
_:search/4ea737ef area anywhere in Cambridge
_:search/4ea737ef food sri lankan
_:search/4ea737ef type Restaurant
_:search food british
_:result area centre
_:result count 4
_:result food British
_:result type Restaurant
_:search day thursday
_:search duration 14:30
_:search people 1
_:search pricerange moderate
_:booking ref 3NX7QMU8
_:booking type Booking
_:search area centre
_:search category college
_:search type Attraction
_:result postcode ?
_:result type Attraction
_:system canthelp _:search/d860f139
_:search/d860f139 area anywhere in Cambridge
_:search/d860f139 food Sri Lankan
_:search/d860f139 type Restaurant
_:system canthelp _:search/4ea737ef
_:search/4ea737ef area anywhere in Cambridge
_:search/4ea737ef food sri lankan
_:search/4ea737ef type Restaurant
_:search food british
_:result area centre
_:result count 4
_:result food British
_:search day thursday
_:search duration 14:30
_:search people 1
_:search pricerange moderate
_:booking ref 3NX7QMU8
_:search area centre
_:search category college
_:search type Attraction
_:result name Emmanuel College
_:result postcode cb23ap
_:result type Attraction
_:system inquired _:user
_:booking name Restaurant One Seven
_:booking type Booking
_:system canthelp _:search/d860f139
_:search/d860f139 area anywhere in Cambridge
_:search/d860f139 food Sri Lankan
_:search/d860f139 type Restaurant
_:system canthelp _:search/4ea737ef
_:search/4ea737ef area anywhere in Cambridge
_:search/4ea737ef food sri lankan
_:search/4ea737ef type Restaurant
_:search food british
_:result area centre
_:result count 4
_:result food British
_:search day thursday
_:search duration 14:30
_:search people 1
_:search pricerange moderate
_:booking ref 3NX7QMU8
_:search area centre
_:search category college
_:search type Attraction
_:booking name Restaurant One Seven
_:booking type Booking
_:result name Christ College
_:result name Corpus Christi
_:result name downing college
_:result postcode cb21dq
_:result postcode cb21rh
_:result postcode cb23bu
_:result type Attraction
_:system inquired _:user