inform((_:search,area,'centre');(_:search,pricerange,'moderate');(_:search,type,'Restaurant'))
user
I want a place to dine in the centre of Cambridge with moderate pricing
request((_:search,food,?);(_:search,type,'Restaurant')) inform((_:result,amount,'plenty of');(_:result,type,'Restaurant'))
system
I have plenty of options for you .   Is there any certain type of food you are looking to eat today ?
inform((_:search,area,'centre');(_:search,day,'monday');(_:search,duration,'14:00');(_:search,food,'italian');(_:search,people,'6');(_:search,type,'Restaurant')) request((_:result,ref,?);(_:result,type,'Restaurant'))
user
I would like an Italian restaurant in the centre and need a reservation for 6 people at 14:00 on Monday and please provide the reference number .
inform((_:booking,name,'pizza express');(_:booking,ref,'STRPXCFT');(_:booking,type,'Booking')) reqmore()
system
I have reserved a table at pizza express . Your reference number is STRPXCFT . Do you need anything else ?
inform((_:search,category,'colleges');(_:search,type,'Attraction'))
user
Yes . Are there any colleges nearby that I can visit ?
inform((_:result,address,'on wollaston road');(_:result,area,'centre');(_:result,category,'colleges');(_:result,count,'13');(_:result,entrance_fee,'free');(_:result,name,'Hughes Hall');(_:result,type,'Attraction'))
system
There are about 13 colleges in the centre of town . Might I suggest Hughes Hall . They offer free entrance and are located on Wollaston Road .
inform((_:search,name,'hughes hall');(_:search,type,'Attraction')) request((_:result,address,?);(_:result,postcode,?);(_:result,type,'Attraction'))
user
Thank you ! What is the address / postcode for Hughes Hall ?
reqmore() inform((_:result,address,'wollaston road');(_:result,postcode,'cb12ew');(_:result,type,'Attraction'))
system
The address is wollaston road and the postcode is cb12ew . Is there anything else I can help you with ?
inform((_:search,departure,'the restaurant');(_:search,destination,'the college');(_:search,type,'Restaurant');(_:search,type,'Taxi'))
user
Yes , I would like to book a taxi to get from the restaurant to the college .
request((_:search,arrive_by,?);(_:search,leave_at,?);(_:search,type,'Taxi'))
system
Okay . I can get you a taxi if you know the time you 'd like to leave or arrive .
inform((_:search,arrive_by,'14:00');(_:search,type,'Taxi'))
user
I need to arrive by 14:00 .
inform((_:result,car,'white toyota');(_:result,phone,'07841942758');(_:result,type,'Taxi'))
system
Booking completed ! 
 Booked car type 	 : 	 white toyota 
 Contact number 	 : 	 07841942758
user
Great !   That was all I needed/
system
Glad I could be of assistance . Good - bye .
_:search area centre
_:search pricerange moderate
_:search type Restaurant
_:search pricerange moderate
_:result amount plenty of
_:result type Restaurant
_:search area centre
_:search day monday
_:search duration 14:00
_:search food italian
_:search people 6
_:search type Restaurant
_:result ref ?
_:search pricerange moderate
_:result amount plenty of
_:result type Restaurant
_:search area centre
_:search day monday
_:search duration 14:00
_:search food italian
_:search people 6
_:result ref ?
_:booking name pizza express
_:booking ref STRPXCFT
_:booking type Booking
_:system inquired _:user
_:search category colleges
_:search type Attraction
_:search pricerange moderate
_:result amount plenty of
_:search area centre
_:search day monday
_:search duration 14:00
_:search food italian
_:search people 6
_:result ref ?
_:booking name pizza express
_:booking ref STRPXCFT
_:booking type Booking
_:system inquired _:user
_:search category colleges
_:result address on wollaston road
_:result area centre
_:result category colleges
_:result count 13
_:result entrance_fee free
_:result name Hughes Hall
_:result type Attraction
_:search name hughes hall
_:search type Attraction
_:result address ?
_:result postcode ?
_:search pricerange moderate
_:result amount plenty of
_:search area centre
_:search day monday
_:search duration 14:00
_:search food italian
_:search people 6
_:result ref ?
_:booking name pizza express
_:booking ref STRPXCFT
_:booking type Booking
_:search category colleges
_:result area centre
_:result category colleges
_:result count 13
_:result entrance_fee free
_:result name Hughes Hall
_:search name hughes hall
_:system inquired _:user
_:result address wollaston road
_:result postcode cb12ew
_:result type Attraction
_:search departure the restaurant
_:search destination the college
_:search type Restaurant
_:search type Taxi
_:search pricerange moderate
_:result amount plenty of
_:search area centre
_:search day monday
_:search duration 14:00
_:search food italian
_:search people 6
_:result ref ?
_:booking name pizza express
_:booking ref STRPXCFT
_:booking type Booking
_:search category colleges
_:result area centre
_:result category colleges
_:result count 13
_:result entrance_fee free
_:result name Hughes Hall
_:search name hughes hall
_:system inquired _:user
_:result address wollaston road
_:result postcode cb12ew
_:result type Attraction
_:search departure the restaurant
_:search destination the college
_:search leave_at ?
_:search arrive_by 14:00
_:search type Taxi
_:search pricerange moderate
_:result amount plenty of
_:search area centre
_:search day monday
_:search duration 14:00
_:search food italian
_:search people 6
_:result ref ?
_:booking name pizza express
_:booking ref STRPXCFT
_:booking type Booking
_:search category colleges
_:result area centre
_:result category colleges
_:result count 13
_:result entrance_fee free
_:result name Hughes Hall
_:search name hughes hall
_:system inquired _:user
_:result address wollaston road
_:result postcode cb12ew
_:search departure the restaurant
_:search destination the college
_:search leave_at ?
_:search arrive_by 14:00
_:search type Taxi
_:result car white toyota
_:result phone 07841942758
_:result type Taxi