inform((_:search,departure,'broxbourne train station');(_:search,type,'Taxi'))
user
i want to book a taxi . The taxi should depart from broxbourne train station
request((_:search,destination,?);(_:search,type,'Taxi'))
system
Where would you like to go ?
inform((_:search,destination,'city stop restaurant');(_:search,leave_at,'20:15');(_:search,type,'Taxi'))
user
I need to leave by 20:15 and am headed to city stop restaurant .
inform((_:result,car,'blue BMW');(_:result,leave_at,'20:15');(_:result,phone,'07753733237');(_:result,type,'Taxi')) reqmore()
system
I have booked you a blue BMW for a 20:15 pickup . The contact number is 07753733237 . Can I help you with anything else today ? 
 .
thank()
user
Thank you . I am all set . Have a great day .
system
Have a good stay . Good bye .
_:search departure broxbourne train station
_:search type Taxi
_:search departure broxbourne train station
_:search destination city stop restaurant
_:search leave_at 20:15
_:search type Taxi
_:search departure broxbourne train station
_:search destination city stop restaurant
_:search leave_at 20:15
_:search type Taxi
_:result car blue BMW
_:result leave_at 20:15
_:result phone 07753733237
_:result type Taxi
_:system inquired _:user