inform((_:search,food,'chinese');(_:search,pricerange,'cheap');(_:search,type,'Restaurant'))
user
I 'm on a tight budget so I need to find a cheap restaurant that serves chinese food
select((_:result,area,'centre');(_:result,area,'south');(_:result,type,'Restaurant'))
system
Sure , do you prefer the south part of town or do you want to stay in the centre ?
user
It does n't matter .
offer((_:booking,type,'Booking')) inform((_:result,area,'centre');(_:result,food,'Chinese');(_:result,name,'Rice House');(_:result,pricerange,'cheap');(_:result,type,'Restaurant'))
system
The Rice House is a great cheap Chinese restaurant located in the centre of town .   Would you like me to book you a table there ?
inform((_:search,day,'sunday');(_:search,duration,'16:45');(_:search,people,'4');(_:search,type,'Restaurant'))
user
Yes . Can you reserve one for 4 people at 16:45 on Sunday ?
system
I 'm sorry my reservation system is not working today . Here is their phone number and address . 01223367755 at 88 Mill Road City Centre . Postcode is cb12bd . Enjoy your meal !
_:search food chinese
_:search pricerange cheap
_:search type Restaurant
_:search food chinese
_:search pricerange cheap
_:search type Restaurant
_:result area centre
_:result area south
_:result type Restaurant
_:search food chinese
_:search pricerange cheap
_:system offered _:booking
_:booking type Booking
_:result area centre
_:result food Chinese
_:result name Rice House
_:result pricerange cheap
_:result type Restaurant
_:search day sunday
_:search duration 16:45
_:search people 4
_:search type Restaurant