inform((_:search,day,'thursday');(_:search,leave_at,'10:30');(_:search,type,'Train'))
user
I want a train that leaves after 10:30 and it needs to leave on Thursday .
inform((_:result,amount,'many');(_:result,leave_at,'10:30');(_:result,type,'Train')) request((_:search,departure,?);(_:search,destination,?);(_:search,type,'Train'))
system
There are many that leave that day after 10:30 , where are you leaving from and headed ?
inform((_:search,departure,'bishops stortford');(_:search,destination,'cambridge');(_:search,type,'Train'))
user
I am leaving from Bishops Stortford and heading into Cambridge .
inform((_:result,amount,'earliest');(_:result,leave_at,'11:29');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
The earliest option would leave at 11:29 . Shall I book it for you ?
inform((_:search,people,'5');(_:search,type,'Train')) request((_:result,ref,?);(_:result,type,'Train'))
user
Yes , I need a booking for 5 people and please provide the reference number .
inform((_:booking,category,'Train');(_:booking,ref,'R4CR5ASG');(_:booking,ticket,'50.5 GBP');(_:booking,type,'Booking'))
system
I have booked it here is the information : Booking was successful , the total fee is 50.5 GBP payable at the station . 
 Reference number is : R4CR5ASG .
inform((_:search,area,'east');(_:search,category,'hotel');(_:search,pricerange,'moderately');(_:search,type,'Hotel'))
user
Thank you . I am also looking for a moderately priced hotel in the East .
system
There are n't any moderately priced hotels in that region . Do you want to look for something else ?
_:search day thursday
_:search leave_at 10:30
_:search type Train
_:search day thursday
_:search leave_at 10:30
_:result amount many
_:result leave_at 10:30
_:result type Train
_:search departure bishops stortford
_:search destination cambridge
_:search type Train
_:search day thursday
_:search leave_at 10:30
_:search departure bishops stortford
_:search destination cambridge
_:result amount earliest
_:result leave_at 11:29
_:result type Train
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:search people 5
_:search type Train
_:result ref ?
_:search day thursday
_:search leave_at 10:30
_:search departure bishops stortford
_:search destination cambridge
_:result amount earliest
_:result leave_at 11:29
_:result type Train
_:system offered _:booking
_:search people 5
_:result ref ?
_:booking category Train
_:booking ref R4CR5ASG
_:booking ticket 50.5 GBP
_:booking type Booking
_:search area east
_:search category hotel
_:search pricerange moderately
_:search type Hotel