inform((_:search,area,'centre');(_:search,type,'Restaurant'))
user
I am looking for a brazliian restaurant in the centre .
canthelp((_:search,type,'Restaurant'))
system
Sorry , I could n't find any food of that type .
inform((_:search,food,'Brazilian');(_:search,type,'Restaurant'))
user
There are no Brazilian restaurants anywhere in Cambridge ?
request((_:search,food,?);(_:search,type,'Restaurant')) canthelp((_:search,type,'Restaurant'))
system
No , their are not any . Would you like to pick a different type of food ?
inform((_:search,food,'british');(_:search,type,'Restaurant'))
user
Yes , what about british food please .
request((_:search,pricerange,?);(_:search,type,'Restaurant'))
system
what price range are you comfortable with ?
inform((_:search,pricerange,'moderate');(_:search,type,'Restaurant'))
user
Something in the moderate price range would be good .
request((_:search,area,?);(_:search,type,'Restaurant'))
system
Do you have a preference as to what area of town you dine in ?
inform((_:search,area,'centre');(_:search,type,'Restaurant'))
user
Yes , the centre is preferable .
inform((_:result,area,'centre');(_:result,name,'Copper Kettle');(_:result,pricerange,'moderate');(_:result,type,'Restaurant'))
system
How about The Copper Kettle ?   It 's located in the centre and moderate price range .
inform((_:search,day,'monday');(_:search,duration,'13:00');(_:search,people,'6');(_:search,type,'Restaurant'))
user
Sounds good ! Please book a table for 6 people at 13:00 on Monday .
reqmore() inform((_:booking,ref,'S59IHPUI');(_:booking,type,'Booking'))
system
Your table has been booked . Your reference number is S59IHPUI . Is there anything else I can help you with today ?
inform((_:search,departure,'cambridge');(_:search,destination,'ely');(_:search,type,'Train'))
user
Thanks . Yes , I also need a train from Cambridge to Ely , please .
inform((_:result,leave_at,'05:50');(_:result,leave_at,'every 2 hours');(_:result,type,'Train')) request((_:search,leave_at,?);(_:search,type,'Train'))
system
Those trains run every 2 hours , starting at 05:50 . What time would you like to depart ?
inform((_:search,arrive_by,'12:30');(_:search,day,'thursday');(_:search,type,'Train'))
user
Thank you ! Anytime is fine , as long as I arrive by 12:30 on Thursday .
inform((_:result,arrive_by,'12:07');(_:result,departure,'Cambridge');(_:result,destination,'Ely');(_:result,id,'TR5216');(_:result,leave_at,'11:50');(_:result,ticket,'4.40 pounds');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking')) request((_:search,people,?);(_:search,type,'Train'))
system
Train TR5216 departs Cambridge at 11:50 and arrives in Ely at 12:07 . The price is 4.40 pounds . Do you want me to book ? If yes , for how many passengers ?
inform((_:search,people,'6');(_:search,type,'Train'))
user
Yes please book for 6 people
reqmore() inform((_:booking,category,'Train');(_:booking,ref,'3WVEK03Y');(_:booking,ticket,'26.4 GBP');(_:booking,type,'Booking'))
system
Booking was successful , the total fee is 26.4 GBP payable at the station . 
 Reference number is : 3WVEK03Y . Can I help you with anything else ?
thank()
user
Thank you .   That was all I needed today .   Goodbye .
system
I am glad that I can help . Have a nice stay .
_:search area centre
_:search type Restaurant
_:search area centre
_:system canthelp _:search/d43dde15
_:search/d43dde15 type Restaurant
_:search food Brazilian
_:search type Restaurant
_:search area centre
_:system canthelp _:search/d43dde15
_:search/d43dde15 type Restaurant
_:system canthelp _:search/2d4a1435
_:search/2d4a1435 type Restaurant
_:search food british
_:search type Restaurant
_:search area centre
_:system canthelp _:search/d43dde15
_:search/d43dde15 type Restaurant
_:system canthelp _:search/2d4a1435
_:search/2d4a1435 type Restaurant
_:search food british
_:search pricerange moderate
_:search type Restaurant
_:system canthelp _:search/d43dde15
_:search/d43dde15 type Restaurant
_:system canthelp _:search/2d4a1435
_:search/2d4a1435 type Restaurant
_:search food british
_:search pricerange moderate
_:search area centre
_:search type Restaurant
_:system canthelp _:search/d43dde15
_:search/d43dde15 type Restaurant
_:system canthelp _:search/2d4a1435
_:search/2d4a1435 type Restaurant
_:search food british
_:search pricerange moderate
_:search area centre
_:result area centre
_:result name Copper Kettle
_:result pricerange moderate
_:result type Restaurant
_:search day monday
_:search duration 13:00
_:search people 6
_:search type Restaurant
_:system canthelp _:search/d43dde15
_:search/d43dde15 type Restaurant
_:system canthelp _:search/2d4a1435
_:search/2d4a1435 type Restaurant
_:search food british
_:search pricerange moderate
_:search area centre
_:result area centre
_:result name Copper Kettle
_:result pricerange moderate
_:result type Restaurant
_:search day monday
_:search duration 13:00
_:search people 6
_:system inquired _:user
_:booking ref S59IHPUI
_:booking type Booking
_:search departure cambridge
_:search destination ely
_:search type Train
_:system canthelp _:search/d43dde15
_:search/d43dde15 type Restaurant
_:system canthelp _:search/2d4a1435
_:search/2d4a1435 type Restaurant
_:search food british
_:search pricerange moderate
_:search area centre
_:result area centre
_:result name Copper Kettle
_:result pricerange moderate
_:search duration 13:00
_:search people 6
_:system inquired _:user
_:booking ref S59IHPUI
_:booking type Booking
_:search departure cambridge
_:search destination ely
_:result leave_at 05:50
_:result leave_at every 2 hours
_:result type Train
_:search leave_at ?
_:search arrive_by 12:30
_:search day thursday
_:search type Train
_:system canthelp _:search/d43dde15
_:search/d43dde15 type Restaurant
_:system canthelp _:search/2d4a1435
_:search/2d4a1435 type Restaurant
_:search food british
_:search pricerange moderate
_:search area centre
_:result area centre
_:result name Copper Kettle
_:result pricerange moderate
_:search duration 13:00
_:system inquired _:user
_:booking ref S59IHPUI
_:booking type Booking
_:search departure cambridge
_:search destination ely
_:search leave_at ?
_:search arrive_by 12:30
_:search day thursday
_:result arrive_by 12:07
_:result departure Cambridge
_:result destination Ely
_:result id TR5216
_:result leave_at 11:50
_:result ticket 4.40 pounds
_:result type Train
_:system offered _:booking
_:booking category Train
_:search people 6
_:search type Train
_:system canthelp _:search/d43dde15
_:search/d43dde15 type Restaurant
_:system canthelp _:search/2d4a1435
_:search/2d4a1435 type Restaurant
_:search food british
_:search pricerange moderate
_:search area centre
_:result area centre
_:result name Copper Kettle
_:result pricerange moderate
_:search duration 13:00
_:search departure cambridge
_:search destination ely
_:search leave_at ?
_:search arrive_by 12:30
_:search day thursday
_:result arrive_by 12:07
_:result departure Cambridge
_:result destination Ely
_:result id TR5216
_:result leave_at 11:50
_:result ticket 4.40 pounds
_:result type Train
_:system offered _:booking
_:search people 6
_:search type Train
_:system inquired _:user
_:booking category Train
_:booking ref 3WVEK03Y
_:booking ticket 26.4 GBP
_:booking type Booking