inform((_:search,departure,'cambridge');(_:search,leave_at,'15:30');(_:search,type,'Train'))
user
I need help finding a train leaving cambridge after 15:30 .
inform((_:result,count,'623');(_:result,type,'Train')) request((_:search,destination,?);(_:search,type,'Train'))
system
I found 623 trains that leave at that time . What is your destination ?
inform((_:search,destination,'cambridge');(_:search,type,'Train'))
user
I m going to cambridge
canthelp((_:search,departure,'cambridge');(_:search,destination,'cambridge');(_:search,type,'Train')) request((_:search,destination,?);(_:search,type,'Train'))
system
There are no trains leaving cambridge and also going to cambridge , did you mean to choose another destination ?
inform((_:search,day,'friday');(_:search,destination,'leicester');(_:search,type,'Train'))
user
The train should leave on friday and should go to leicester ..
inform((_:result,day,'Friday');(_:result,id,'TR0094');(_:result,leave_at,'16:21');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
TR0094 leaves at 16:21 on Friday . Can I book it for you ?
inform((_:search,people,'8');(_:search,type,'Train'))
user
Yes , please . Could you book 8 tickets ?
inform((_:booking,category,'Train');(_:booking,ref,'3P7B0D6T');(_:booking,ticket,'302.39 GBP');(_:booking,type,'Booking'))
system
Booking was successful , the total fee is 302.39 GBP payable at the station . 
 Reference number is : 3P7B0D6T .
thank()
user
thank you for your help
bye()
system
Thank you so much . Have a good day now !
bye()
user
Thank you good bye .
system
You are more than welcome !
_:search departure cambridge
_:search leave_at 15:30
_:search type Train
_:search departure cambridge
_:search leave_at 15:30
_:result count 623
_:result type Train
_:search destination cambridge
_:search type Train
_:search departure cambridge
_:search leave_at 15:30
_:result count 623
_:result type Train
_:system canthelp _:search/5b5c5f7e
_:search/5b5c5f7e departure cambridge
_:search/5b5c5f7e destination cambridge
_:search/5b5c5f7e type Train
_:search day friday
_:search destination leicester
_:search type Train
_:search departure cambridge
_:search leave_at 15:30
_:result count 623
_:system canthelp _:search/5b5c5f7e
_:search/5b5c5f7e departure cambridge
_:search/5b5c5f7e destination cambridge
_:search/5b5c5f7e type Train
_:search day friday
_:search destination leicester
_:result day Friday
_:result id TR0094
_:result leave_at 16:21
_:result type Train
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:search people 8
_:search type Train
_:search departure cambridge
_:search leave_at 15:30
_:result count 623
_:system canthelp _:search/5b5c5f7e
_:search/5b5c5f7e departure cambridge
_:search/5b5c5f7e destination cambridge
_:search/5b5c5f7e type Train
_:search day friday
_:search destination leicester
_:result day Friday
_:result id TR0094
_:result leave_at 16:21
_:result type Train
_:system offered _:booking
_:search people 8
_:search type Train
_:booking category Train
_:booking ref 3P7B0D6T
_:booking ticket 302.39 GBP
_:booking type Booking
_:search departure cambridge
_:search leave_at 15:30
_:result count 623
_:system canthelp _:search/5b5c5f7e
_:search/5b5c5f7e departure cambridge
_:search/5b5c5f7e destination cambridge
_:search/5b5c5f7e type Train
_:search day friday
_:search destination leicester
_:result day Friday
_:result id TR0094
_:result leave_at 16:21
_:result type Train
_:system offered _:booking
_:search people 8
_:search type Train
_:booking category Train
_:booking ref 3P7B0D6T
_:booking ticket 302.39 GBP
_:booking type Booking
_:system dismissed _:user
_:user dismissed _:system