inform((_:search,food,'chinese');(_:search,pricerange,'expensive');(_:search,type,'Restaurant'))
user
I am looking for a place to dine .   The restaurant should be expensive and should serve Chinese food .
request((_:search,area,?);(_:search,name,?);(_:search,type,'Restaurant'))
system
Would you like the restaurant in a specific place ?
inform((_:search,area,'dontcare');(_:search,day,'saturday');(_:search,duration,'14:00');(_:search,people,'3');(_:search,type,'Restaurant'))
user
Not in any specific area please . I need to book a table for 3 at 14:00 on Saturday .
canthelp((_:booking,type,'Booking')) request((_:booking,day,?);(_:booking,duration,?);(_:booking,type,'Booking'))
system
Unfortunately , it looks like all the options are booked for that day / time . Would you like me to change the time or possibly the day ?
inform((_:search,duration,'13:00');(_:search,type,'Restaurant'))
user
how about 13:00 then ?
inform((_:booking,duration,'13:00');(_:booking,type,'Booking');(_:result,name,'the yu garden');(_:result,type,'Restaurant'))
system
Yes , I can book you at the yu garden for 13:00 .
request((_:result,ref,?);(_:result,type,'Restaurant'))
user
What is the reference number for my booking ?
reqmore() inform((_:booking,ref,'P3VZVZGY');(_:booking,type,'Booking'))
system
Your table is reserved for 15 minutes and your reference is P3VZVZGY .   Can I help you with anything else ?
thank()
user
No thank you , that is all I needed !
system
Great .   Let us know if you need anything else !
_:search food chinese
_:search pricerange expensive
_:search type Restaurant
_:search food chinese
_:search pricerange expensive
_:search name ?
_:search area dontcare
_:search day saturday
_:search duration 14:00
_:search people 3
_:search type Restaurant
_:search food chinese
_:search pricerange expensive
_:search name ?
_:search area dontcare
_:search day saturday
_:search people 3
_:system canthelp _:booking/02514093
_:booking/02514093 type Booking
_:booking day ?
_:booking duration ?
_:booking type Booking
_:search duration 13:00
_:search type Restaurant
_:search food chinese
_:search pricerange expensive
_:search name ?
_:search area dontcare
_:search day saturday
_:search people 3
_:system canthelp _:booking/02514093
_:booking/02514093 type Booking
_:booking day ?
_:search duration 13:00
_:search type Restaurant
_:booking duration 13:00
_:booking type Booking
_:result name the yu garden
_:result type Restaurant
_:result ref ?
_:search food chinese
_:search pricerange expensive
_:search name ?
_:search area dontcare
_:search day saturday
_:search people 3
_:system canthelp _:booking/02514093
_:booking/02514093 type Booking
_:booking day ?
_:search duration 13:00
_:search type Restaurant
_:booking duration 13:00
_:result name the yu garden
_:result type Restaurant
_:result ref ?
_:system inquired _:user
_:booking ref P3VZVZGY
_:booking type Booking