inform((_:search,departure,'express by holiday inn cambridge');(_:search,destination,'the oak bistro');(_:search,type,'Taxi'))
user
I need to book a taxi to come to Express by Holiday Inn Cambridge to take me to The Oak Bistro .
request((_:search,leave_at,?);(_:search,type,'Taxi'))
system
Okay , what time do you want to leave by ?
inform((_:search,leave_at,'07:30');(_:search,type,'Taxi'))
user
I want to leave by 07:30 .
system
Booking completed ! 
 Booked car type 	 : 	 blue audi 
 Contact number 	 : 	 07384266453
_:search departure express by holiday inn cambridge
_:search destination the oak bistro
_:search type Taxi
_:search departure express by holiday inn cambridge
_:search destination the oak bistro
_:search leave_at 07:30
_:search type Taxi