inform((_:search,arrive_by,'20:30');(_:search,departure,'cambridge');(_:search,type,'Train'))
user
Find me a train from Cambridge that arrives by 20:30
request((_:search,day,?);(_:search,destination,?);(_:search,type,'Train'))
system
Sure , where are you traveling to , and which day ?
inform((_:search,day,'sunday');(_:search,destination,'london liverpool street');(_:search,type,'Train'))
user
I need to leave on sunday and I am headed to london liverpool street .
inform((_:result,arrive_by,'19:27');(_:result,id,'TR7713');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
I have TR7713 that arrives by 19:27 . Does that work for you ?
inform((_:search,people,'3');(_:search,type,'Train'))
user
Yes , can you book it for 3 people please ?
reqmore() inform((_:booking,category,'Train');(_:booking,ref,'XG11A6BS');(_:booking,ticket,'39.83 GBP');(_:booking,type,'Booking'))
system
Booking was successful , the total fee is 39.83 GBP payable at the station . 
 Reference number is : XG11A6BS . Can I help you with anything else today ?
inform((_:search,area,'west');(_:search,food,'british');(_:search,type,'Restaurant'))
user
Yes , I need a place to eat . I want to try some british food , prefer the west side of town .
inform((_:result,name,'travellers rest');(_:result,type,'Restaurant'))
system
I would suggest this place travellers rest .
request((_:result,address,?);(_:result,phone,?);(_:result,postcode,?);(_:result,type,'Restaurant'))
user
Can i have the address , phone number , and postcode , please ?
reqmore() inform((_:result,address,'Huntingdon Road City Centre');(_:result,phone,'01223276182');(_:result,postcode,'cb30df');(_:result,type,'Restaurant'))
system
They are at Huntingdon Road City Centre , postcide cb30df , phone is 01223276182 , can I assist with anything else ?
thank()
user
Nope .   That is all I needed !   Thanks .
system
My pleasure , have a wonderful trip .
_:search arrive_by 20:30
_:search departure cambridge
_:search type Train
_:search arrive_by 20:30
_:search departure cambridge
_:search day sunday
_:search destination london liverpool street
_:search type Train
_:search arrive_by 20:30
_:search departure cambridge
_:search day sunday
_:search destination london liverpool street
_:result arrive_by 19:27
_:result id TR7713
_:result type Train
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:search people 3
_:search type Train
_:search arrive_by 20:30
_:search departure cambridge
_:search day sunday
_:search destination london liverpool street
_:result arrive_by 19:27
_:result id TR7713
_:result type Train
_:system offered _:booking
_:search people 3
_:system inquired _:user
_:booking category Train
_:booking ref XG11A6BS
_:booking ticket 39.83 GBP
_:booking type Booking
_:search area west
_:search food british
_:search type Restaurant
_:search arrive_by 20:30
_:search departure cambridge
_:search day sunday
_:search destination london liverpool street
_:result arrive_by 19:27
_:result id TR7713
_:system offered _:booking
_:search people 3
_:system inquired _:user
_:booking category Train
_:booking ref XG11A6BS
_:booking ticket 39.83 GBP
_:booking type Booking
_:search area west
_:search food british
_:search type Restaurant
_:result name travellers rest
_:result type Restaurant
_:result address ?
_:result phone ?
_:result postcode ?
_:search arrive_by 20:30
_:search departure cambridge
_:search day sunday
_:search destination london liverpool street
_:result arrive_by 19:27
_:result id TR7713
_:system offered _:booking
_:search people 3
_:booking category Train
_:booking ref XG11A6BS
_:booking ticket 39.83 GBP
_:booking type Booking
_:search area west
_:search food british
_:search type Restaurant
_:result name travellers rest
_:system inquired _:user
_:result address Huntingdon Road City Centre
_:result phone 01223276182
_:result postcode cb30df
_:result type Restaurant