inform((_:search,type,'Taxi'))
user
I need help today booking a taxi .
request((_:search,destination,?);(_:search,type,'Taxi'))
system
Alright where would you like to go ?
inform((_:search,departure,'ballare');(_:search,destination,'vue cinema');(_:search,type,'Taxi'))
user
Vue Cinema . I will be leaving from Ballare .
request((_:search,leave_at,?);(_:search,type,'Taxi'))
system
What time would you like to be picked up ?
inform((_:search,leave_at,'13:00');(_:search,type,'Taxi'))
user
I need to be picked up by 13:00 .
inform((_:result,car,'white toyota');(_:result,phone,'07622282042');(_:result,type,'Taxi'))
system
Booking completed ! 
 Booked car type 	 : 	 white toyota 
 Contact number 	 : 	 07622282042
thank()
user
Thank you for your help
system
You are welcome ! Have a nice day !
_:search type Taxi
_:search departure ballare
_:search destination vue cinema
_:search type Taxi
_:search departure ballare
_:search destination vue cinema
_:search leave_at 13:00
_:search type Taxi
_:search departure ballare
_:search destination vue cinema
_:search leave_at 13:00
_:search type Taxi
_:result car white toyota
_:result phone 07622282042
_:result type Taxi