inform((_:search,area,'east');(_:search,food,'greek');(_:search,type,'Restaurant'))
user
I am looking for a greek restaurant on the east side of town .
request((_:search,area,?);(_:search,type,'Restaurant')) canthelp((_:search,type,'Restaurant'))
system
we do nt have any by your choice . maybe if you can choose another location
inform((_:search,day,'tuesday');(_:search,duration,'16:45');(_:search,name,'tang chinese');(_:search,people,'6');(_:search,type,'Restaurant'))
user
tang chinese . 
 Once you find the restaurant you want to book a table for 6 people at 16:45 on tuesday
select((_:result,food,'Chinese');(_:result,type,'Restaurant')) canthelp((_:search,type,'Restaurant'))
system
I am unable to locate this specific restaurant . Would you consider a different Chinese restaurant ?
inform((_:search,name,'tang chinese');(_:search,type,'Restaurant'))
user
Are you sure ? Could you please remove my eastern Greek preference and look by name for Tang Chinese ?
canthelp((_:search,type,'Restaurant')) reqmore()
system
our records do n't have that specific restaurant . any other preference ?
inform((_:search,name,'tang chinese');(_:search,type,'Restaurant'))
user
Are you sure ? I really need to find a place called tang chinese .
offer((_:booking,type,'Booking')) inform((_:result,area,'centre');(_:result,name,'Tang Chinese');(_:result,pricerange,'expensive');(_:result,type,'Restaurant'))
system
Yes , I have found Tang Chinese .   It is located in the centre with an expensive price range , shall I book you a table ?
inform((_:search,day,'tuesday');(_:search,duration,'16:45');(_:search,people,'6');(_:search,type,'Restaurant'))
user
Yes , for 6 on Tuesday at 16:45 .
inform((_:booking,ref,'LEZO9G3L');(_:booking,type,'Booking'))
system
Okay , the booking was successful . The table will be reserved for 15 minutes . Your reference number is LEZO9G3L .
inform((_:search,arrive_by,'09:30');(_:search,day,'same day');(_:search,departure,'stansted airport');(_:search,destination,'cambridge');(_:search,type,'Train'))
user
I 'm looking for a train from stansted airport to cambridge and should arrive by 09:30 , the same day as the restaurant booking .
inform((_:result,arrive_by,'8:52');(_:result,id,'TR5077');(_:result,leave_at,'08:24');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
TR5077 leaves at 08:24 and arrives by 8:52 .   Would that work for you ?
request((_:result,duration,?);(_:result,type,'Train'))
user
yes . can i get the travel time please ?
inform((_:result,duration,'28 minutes');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
The travel time is 28 minutes , do you need a booking ?
inform((_:search,type,'Train'))
user
Actually I just needed the trains information . That ll be everything thanks for the help
system
Thank you for calling . I hope you enjoy your trip . Goodbye .
_:search area east
_:search food greek
_:search type Restaurant
_:search food greek
_:search area ?
_:system canthelp _:search/b86cfc71
_:search/b86cfc71 type Restaurant
_:search day tuesday
_:search duration 16:45
_:search name tang chinese
_:search people 6
_:search type Restaurant
_:search food greek
_:search area ?
_:system canthelp _:search/b86cfc71
_:search/b86cfc71 type Restaurant
_:search day tuesday
_:search duration 16:45
_:search people 6
_:result food Chinese
_:result type Restaurant
_:system canthelp _:search/d75dd1e9
_:search/d75dd1e9 type Restaurant
_:search name tang chinese
_:search type Restaurant
_:search food greek
_:search area ?
_:system canthelp _:search/b86cfc71
_:search/b86cfc71 type Restaurant
_:search day tuesday
_:search duration 16:45
_:search people 6
_:result food Chinese
_:result type Restaurant
_:system canthelp _:search/d75dd1e9
_:search/d75dd1e9 type Restaurant
_:system canthelp _:search/377493f6
_:search/377493f6 type Restaurant
_:system inquired _:user
_:search name tang chinese
_:search type Restaurant
_:search food greek
_:search area ?
_:system canthelp _:search/b86cfc71
_:search/b86cfc71 type Restaurant
_:result food Chinese
_:system canthelp _:search/d75dd1e9
_:search/d75dd1e9 type Restaurant
_:system canthelp _:search/377493f6
_:search/377493f6 type Restaurant
_:system inquired _:user
_:search name tang chinese
_:system offered _:booking
_:booking type Booking
_:result area centre
_:result name Tang Chinese
_:result pricerange expensive
_:result type Restaurant
_:search day tuesday
_:search duration 16:45
_:search people 6
_:search type Restaurant
_:search food greek
_:search area ?
_:system canthelp _:search/b86cfc71
_:search/b86cfc71 type Restaurant
_:result food Chinese
_:system canthelp _:search/d75dd1e9
_:search/d75dd1e9 type Restaurant
_:system canthelp _:search/377493f6
_:search/377493f6 type Restaurant
_:system inquired _:user
_:search name tang chinese
_:system offered _:booking
_:result area centre
_:result name Tang Chinese
_:result pricerange expensive
_:result type Restaurant
_:search duration 16:45
_:search people 6
_:booking ref LEZO9G3L
_:booking type Booking
_:search arrive_by 09:30
_:search day same day
_:search departure stansted airport
_:search destination cambridge
_:search type Train
_:search food greek
_:search area ?
_:system canthelp _:search/b86cfc71
_:search/b86cfc71 type Restaurant
_:result food Chinese
_:system canthelp _:search/d75dd1e9
_:search/d75dd1e9 type Restaurant
_:system canthelp _:search/377493f6
_:search/377493f6 type Restaurant
_:system inquired _:user
_:search name tang chinese
_:system offered _:booking
_:result area centre
_:result name Tang Chinese
_:result pricerange expensive
_:search duration 16:45
_:search people 6
_:booking ref LEZO9G3L
_:booking type Booking
_:search arrive_by 09:30
_:search day same day
_:search departure stansted airport
_:search destination cambridge
_:search type Train
_:result arrive_by 8:52
_:result id TR5077
_:result leave_at 08:24
_:result type Train
_:booking category Train
_:result duration ?
_:search food greek
_:search area ?
_:system canthelp _:search/b86cfc71
_:search/b86cfc71 type Restaurant
_:result food Chinese
_:system canthelp _:search/d75dd1e9
_:search/d75dd1e9 type Restaurant
_:system canthelp _:search/377493f6
_:search/377493f6 type Restaurant
_:system inquired _:user
_:search name tang chinese
_:system offered _:booking
_:result area centre
_:result name Tang Chinese
_:result pricerange expensive
_:search duration 16:45
_:search people 6
_:booking ref LEZO9G3L
_:booking type Booking
_:search arrive_by 09:30
_:search day same day
_:search departure stansted airport
_:search destination cambridge
_:result arrive_by 8:52
_:result id TR5077
_:result leave_at 08:24
_:booking category Train
_:result duration 28 minutes
_:result type Train
_:search type Train