inform((_:search,type,'Train'))
user
I need some train schedule information , please .
request((_:search,departure,?);(_:search,destination,?);(_:search,type,'Train'))
system
Is there a specific destination you need to depart from ?
inform((_:search,arrive_by,'18:15');(_:search,departure,'ely');(_:search,type,'Train'))
user
Yes , the train should arrive by 18:15 and should depart from ely .
request((_:search,destination,?);(_:search,type,'Train'))
system
What is your destination ?
inform((_:search,destination,'cambridge');(_:search,type,'Train'))
user
I want to go to Cambridge , please .
inform((_:result,id,'TR8519');(_:result,type,'Train'))
system
trainID 	 departure 	 destination 	 day 	 leaveAt 	 arriveBy 	 price 	 duration 	 book 
 ( optional ) 
 TR8519 	 ely 	 cambridge 	 friday 	 05:35 	 05:52 	 4.40 pounds 	 17 minutes 	
 TR8510 	 ely 	 cambridge 	 friday 	 07:35 	 07:52 	 4.40 pounds 	 17 minutes 	
 TR3976 	 ely 	 cambridge 	 friday 	 09:35 	 09:52 	 4.40 pounds 	 17 minutes 	
 TR0212 	 ely 	 cambridge 	 friday 	 11:35 	 11:52 	 4.40 pounds 	 17 minutes 	
 TR0236 	 ely 	 cambridge 	 friday 	 13:35 	 13:52 	 4.40 pounds 	 17 minutes there is a sample
thank()
user
Thanks , that 's all I need .
request((_:search,day,?);(_:search,type,'Train'))
system
Did you say you were leaving on Friday ?
inform((_:search,day,'thursday');(_:search,type,'Train'))
user
I need to leave on Thursday , not Friday .
thank()
system
I see . All right , I 've adjusted that information for you .
user
That is all i needed .
system
Thank you for using our services .
_:search type Train
_:search destination ?
_:search arrive_by 18:15
_:search departure ely
_:search type Train
_:search arrive_by 18:15
_:search departure ely
_:search destination cambridge
_:search type Train
_:search arrive_by 18:15
_:search departure ely
_:search destination cambridge
_:search type Train
_:result id TR8519
_:result type Train
_:search arrive_by 18:15
_:search departure ely
_:search destination cambridge
_:result id TR8519
_:result type Train
_:search day thursday
_:search type Train
_:search arrive_by 18:15
_:search departure ely
_:search destination cambridge
_:result id TR8519
_:result type Train
_:search day thursday
_:search type Train