inform((_:search,day,'tuesday');(_:search,type,'Train'))
user
Can you help get tickets for a train on Tuesday ?
request((_:search,destination,?);(_:search,type,'Train'))
system
Absolutely ! Where will you be heading ?
inform((_:search,departure,'stevenage');(_:search,destination,'cambridge');(_:search,leave_at,'10:45');(_:search,type,'Train'))
user
I need to go to Cambridge from Stevenage after 10:45 .
system
On Tuesday there is a train from Stevenage to Cambridge at 10:45
_:search day tuesday
_:search type Train
_:search day tuesday
_:search departure stevenage
_:search destination cambridge
_:search leave_at 10:45
_:search type Train