inform((_:search,area,'centre');(_:search,pricerange,'expensive');(_:search,type,'Restaurant'))
user
Are there any expensive restaurants in the centre of town ?
request((_:search,food,?);(_:search,type,'Restaurant')) inform((_:result,amount,'over 30');(_:result,type,'Restaurant'))
system
There are over 30 . What type of food are you interested in ?
inform((_:search,food,'dontcare');(_:search,type,'Restaurant'))
user
Any type would be good . Can you recommend one ?
offer((_:booking,type,'Booking')) inform((_:result,food,'african');(_:result,name,'the bedouin');(_:result,pricerange,'expensive');(_:result,type,'Restaurant'))
system
the bedouin serves african and is the expensive range ? would you liketo book a table .
request((_:result,address,?);(_:result,type,'Restaurant'))
user
No thanks . Can you tell me the address of the restaurant ?
inform((_:result,address,'100 Mill Road City Centre');(_:result,type,'Restaurant'))
system
They are located at 100 Mill Road City Centre
inform((_:search,departure,'Stevanage');(_:search,destination,'cambridge');(_:search,type,'Train'))
user
Great .   I am also looking train schedules , leaving from Stevanage and going to Cambridge .
request((_:search,leave_at,?);(_:search,type,'Train'))
system
What time will you be departing ?
inform((_:search,leave_at,'11:00');(_:search,people,'7');(_:search,type,'Train'))
user
I need to leave sometime after 11:00 and I need tickets for 7 people .
request((_:search,arrive_by,?);(_:search,day,?);(_:search,type,'Train'))
system
Great , I 'll be happy to look into this for you . What day would you like to leave ? Do you need to arrive by a certain time ?
inform((_:search,day,'sunday');(_:search,type,'Train'))
user
I 'd like to leave Sunday , and it does n't matter when I arrive .
inform((_:result,arrive_by,'12:43');(_:result,day,'Sunday');(_:result,departure,'Stevenage');(_:result,destination,'Cambridge');(_:result,leave_at,'11:54');(_:result,ticket,'10.24 GBP');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
There is a train from Stevenage to Cambridge Sunday at 11:54 , it arrives at 12:43 costing 10.24 GBP per ticket . Would you like me to book this train ?
request((_:result,ref,?);(_:result,type,'Train'))
user
Yes , please . Can you please be sure to tell me the reference number ?
reqmore() inform((_:booking,category,'Train');(_:booking,ref,'JCN15KC1');(_:booking,ticket,'71.68 GBP');(_:booking,type,'Booking'))
system
Booking was successful , the total fee is 71.68 GBP payable at the station . 
 Reference number is : JCN15KC1 . Will you need anything else ?
thank()
user
No that 's all . Thank you . Goodbye .
system
Enjoy your trip .
_:search area centre
_:search pricerange expensive
_:search type Restaurant
_:search area centre
_:search pricerange expensive
_:result amount over 30
_:result type Restaurant
_:search food dontcare
_:search type Restaurant
_:search area centre
_:search pricerange expensive
_:result amount over 30
_:search food dontcare
_:search type Restaurant
_:system offered _:booking
_:booking type Booking
_:result food african
_:result name the bedouin
_:result pricerange expensive
_:result type Restaurant
_:result address ?
_:search area centre
_:search pricerange expensive
_:result amount over 30
_:search food dontcare
_:system offered _:booking
_:booking type Booking
_:result food african
_:result name the bedouin
_:result pricerange expensive
_:result address 100 Mill Road City Centre
_:result type Restaurant
_:search departure Stevanage
_:search destination cambridge
_:search type Train
_:search area centre
_:search pricerange expensive
_:result amount over 30
_:search food dontcare
_:system offered _:booking
_:booking type Booking
_:result food african
_:result name the bedouin
_:result pricerange expensive
_:result address 100 Mill Road City Centre
_:result type Restaurant
_:search departure Stevanage
_:search destination cambridge
_:search leave_at 11:00
_:search people 7
_:search type Train
_:search area centre
_:search pricerange expensive
_:result amount over 30
_:search food dontcare
_:system offered _:booking
_:booking type Booking
_:result food african
_:result name the bedouin
_:result pricerange expensive
_:result address 100 Mill Road City Centre
_:result type Restaurant
_:search departure Stevanage
_:search destination cambridge
_:search leave_at 11:00
_:search people 7
_:search arrive_by ?
_:search day sunday
_:search type Train
_:search area centre
_:search pricerange expensive
_:result amount over 30
_:search food dontcare
_:system offered _:booking
_:booking type Booking
_:result food african
_:result name the bedouin
_:result pricerange expensive
_:result address 100 Mill Road City Centre
_:search departure Stevanage
_:search destination cambridge
_:search leave_at 11:00
_:search people 7
_:search arrive_by ?
_:search day sunday
_:search type Train
_:result arrive_by 12:43
_:result day Sunday
_:result departure Stevenage
_:result destination Cambridge
_:result leave_at 11:54
_:result ticket 10.24 GBP
_:result type Train
_:booking category Train
_:result ref ?
_:search area centre
_:search pricerange expensive
_:result amount over 30
_:search food dontcare
_:system offered _:booking
_:result food african
_:result name the bedouin
_:result pricerange expensive
_:result address 100 Mill Road City Centre
_:search departure Stevanage
_:search destination cambridge
_:search leave_at 11:00
_:search people 7
_:search arrive_by ?
_:search day sunday
_:search type Train
_:result arrive_by 12:43
_:result day Sunday
_:result departure Stevenage
_:result destination Cambridge
_:result leave_at 11:54
_:result ticket 10.24 GBP
_:result type Train
_:result ref ?
_:system inquired _:user
_:booking category Train
_:booking ref JCN15KC1
_:booking ticket 71.68 GBP
_:booking type Booking