inform((_:search,arrive_by,'13:15');(_:search,destination,'primavera');(_:search,type,'Taxi'))
user
I need a taxi to arrive by 13:15 to primavera
request((_:search,departure,?);(_:search,type,'Taxi'))
system
I can help book that for you , first I will need to know where you need picked up from .
inform((_:search,departure,'curry queen');(_:search,type,'Taxi'))
user
I 'm departing from curry queen .
inform((_:result,car,'white bmw');(_:result,phone,'07843539534');(_:result,type,'Taxi'))
system
Booking completed ! 
 Booked car type 	 : 	 white bmw 
 Contact number 	 : 	 07843539534
thank()
user
Thank you , I 'm all set . Goodbye .
system
You are welcome . Thank you for contacting the centre . Goodbye .
_:search arrive_by 13:15
_:search destination primavera
_:search type Taxi
_:search arrive_by 13:15
_:search destination primavera
_:search departure curry queen
_:search type Taxi
_:search arrive_by 13:15
_:search destination primavera
_:search departure curry queen
_:search type Taxi
_:result car white bmw
_:result phone 07843539534
_:result type Taxi