inform((_:search,destination,'bangkok city');(_:search,leave_at,'07:45');(_:search,type,'Taxi'))
user
I need to book a taxi to leave after 07:45 to take me to Bangkok City .
request((_:search,departure,?);(_:search,type,'Taxi'))
system
Where will your departure site be ?
inform((_:search,departure,'primavera');(_:search,type,'Taxi'))
user
I 'm leaving from primavera .
system
Booking completed ! 
 Booked car type 	 : 	 yellow bmw 
 Contact number 	 : 	 07711369546
_:search destination bangkok city
_:search leave_at 07:45
_:search type Taxi
_:search destination bangkok city
_:search leave_at 07:45
_:search departure primavera
_:search type Taxi