inform((_:search,area,'west');(_:search,pricerange,'cheap');(_:search,type,'Restaurant'))
user
I am looking for a place to dine . The restaurant should be in the west and should be in the cheap price range
select((_:result,food,'Italian');(_:result,food,'Vietnamese');(_:result,type,'Restaurant')) inform((_:result,type,'Restaurant'))
system
I have both an Italian restaurant and a Vietnamese Restaurant . Do you have a preference ?
inform((_:search,day,'friday');(_:search,duration,'15:30');(_:search,people,'5');(_:search,type,'Restaurant'))
user
I do n't care   book a table for 5 people at 15:30 on friday .
inform((_:booking,ref,'YW1NYRXC');(_:booking,type,'Booking'))
system
Booking was successful . The table will be reserved for 15 minutes . 
 Reference number is : YW1NYRXC .
thank()
user
Cool thank you . I 'm all set for now .
system
Thanks for allowing me to help you . Have a great day .
_:search area west
_:search pricerange cheap
_:search type Restaurant
_:search area west
_:search pricerange cheap
_:result food Italian
_:result food Vietnamese
_:result type Restaurant
_:search day friday
_:search duration 15:30
_:search people 5
_:search type Restaurant
_:search area west
_:search pricerange cheap
_:result food Italian
_:result food Vietnamese
_:result type Restaurant
_:search day friday
_:search duration 15:30
_:search people 5
_:search type Restaurant
_:booking ref YW1NYRXC
_:booking type Booking