inform((_:search,arrive_by,'9:30');(_:search,departure,'london liverpool street');(_:search,type,'Train'))
user
I want a train from london liverpool street arriving at 9:30
request((_:search,day,?);(_:search,type,'Train'))
system
Which day will you be traveling ?
inform((_:search,day,'thursday');(_:search,type,'Train'))
user
I want to leave on Thursday .
offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
Ok , I should be able to do that for you .
inform((_:search,destination,'cambridge');(_:search,type,'Train')) request((_:result,ticket,?);(_:result,type,'Train'))
user
I want to go to Cambridge , how much will that cost ?
inform((_:result,count,'3');(_:result,ticket,'16.60 pounds');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
There are three trains that will fit your needs , and the tickets are 16.60 pounds each . Would you like me to purchase tickets for you ?
thank()
user
Yes , that sounds good . Thank you .
offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
Would you like me to book that for you ?
request((_:result,ticket,?);(_:result,type,'Train'))
user
Can you tell me how much the ticket is ?
inform((_:result,count,'3');(_:result,leave_at,'5:39');(_:result,ticket,'16.60 pounds');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
Yes , there are 3 that cost 16.60 pounds .   You could leave at 5:39 if you 'd like .   Can I book that for you ?
thank()
user
No , thanks . No need . I will do that later . Thank you for all the info . Have a nice day .
system
It 's my pleasure . Goodbye !
_:search arrive_by 9:30
_:search departure london liverpool street
_:search type Train
_:search arrive_by 9:30
_:search departure london liverpool street
_:search day thursday
_:search type Train
_:search arrive_by 9:30
_:search departure london liverpool street
_:search day thursday
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:search destination cambridge
_:search type Train
_:result ticket ?
_:result type Train
_:search arrive_by 9:30
_:search departure london liverpool street
_:search day thursday
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:search destination cambridge
_:search type Train
_:result count 3
_:result ticket 16.60 pounds
_:result type Train
_:search arrive_by 9:30
_:search departure london liverpool street
_:search day thursday
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:search destination cambridge
_:search type Train
_:result count 3
_:result ticket 16.60 pounds
_:result type Train
_:result ticket ?
_:search arrive_by 9:30
_:search departure london liverpool street
_:search day thursday
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:search destination cambridge
_:search type Train
_:result count 3
_:result leave_at 5:39
_:result ticket 16.60 pounds
_:result type Train