inform((_:search,destination,'cambridge');(_:search,type,'Train'))
user
I am looking for a train to Cambridge .
request((_:search,day,?);(_:search,type,'Train'))
system
When will you be travelling ?
inform((_:search,day,'friday');(_:search,leave_at,'20:45');(_:search,type,'Train'))
user
I 'll be leaving Friday after 20:45 .
inform((_:result,amount,'several');(_:result,type,'Train')) request((_:search,departure,?);(_:search,type,'Train'))
system
I have several options for you depending on your departure site . Where will you be leaving from ?
inform((_:search,departure,'cambridge');(_:search,destination,'Bishops Stortford');(_:search,type,'Train'))
user
I need to depart from cambridge and go to Bishops Stortford .
inform((_:result,amount,'few');(_:result,type,'Train')) request((_:search,people,?);(_:search,type,'Train'))
system
There are few options to choose from . How many people are traveling ?
inform((_:search,people,'2');(_:search,type,'Train'))
user
I will have 2 people traveling .
offer((_:booking,category,'Train');(_:booking,id,'TR4664');(_:booking,type,'Booking'))
system
Okay , would you like me to book TR4664 ?
request((_:result,ref,?);(_:result,type,'Train'))
user
Yes , please . I need the reference number .
reqmore() inform((_:booking,category,'Train');(_:booking,ref,'0JI02QOT');(_:booking,type,'Booking'))
system
The reference number is   0JI02QOT . Can I help you with anything else ?
thank()
user
No thank you that is all I needed .
system
Thank you have a nice day .
_:search destination cambridge
_:search type Train
_:search destination cambridge
_:search day friday
_:search leave_at 20:45
_:search type Train
_:search day friday
_:search leave_at 20:45
_:result amount several
_:result type Train
_:search departure cambridge
_:search destination Bishops Stortford
_:search type Train
_:search day friday
_:search leave_at 20:45
_:search departure cambridge
_:search destination Bishops Stortford
_:result amount few
_:result type Train
_:search people 2
_:search type Train
_:search day friday
_:search leave_at 20:45
_:search departure cambridge
_:search destination Bishops Stortford
_:result amount few
_:result type Train
_:search people 2
_:search type Train
_:system offered _:booking
_:booking category Train
_:booking id TR4664
_:booking type Booking
_:result ref ?
_:search day friday
_:search leave_at 20:45
_:search departure cambridge
_:search destination Bishops Stortford
_:result amount few
_:result type Train
_:search people 2
_:search type Train
_:system offered _:booking
_:booking id TR4664
_:result ref ?
_:system inquired _:user
_:booking category Train
_:booking ref 0JI02QOT
_:booking type Booking