inform((_:search,category,'hotel');(_:search,name,'city centre north b and b');(_:search,type,'Hotel'))
user
I 'm looking for a hotel called city centre north b and b
offer((_:booking,type,'Booking'))
system
May I help set a booking for you ?
inform((_:search,category,'hotel');(_:search,has_parking,'yes');(_:search,type,'Hotel')) request((_:result,has_parking,?);(_:result,type,'Hotel'))
user
Does the hotel have free parking ?
inform((_:result,has_parking,'none');(_:result,phone,'01223312843');(_:result,type,'Hotel'))
system
They offer parking but I am unsure if it is free , but their phone number is 01223312843 if you 'd like to call and check with them .
inform((_:search,day,'sunday');(_:search,type,'Train'))
user
Hmm . Okay . Could you help me find a train ? I need to leave on Sunday .
request((_:search,leave_at,?);(_:search,type,'Train'))
system
And when would you like to leave by ?
inform((_:search,arrive_by,'14:00');(_:search,day,'sunday');(_:search,type,'Train'))
user
I want to leave on Sunday and arrive by 14:00 .
request((_:search,departure,?);(_:search,destination,?);(_:search,type,'Train'))
system
Where are you traveling from and to ?
inform((_:search,departure,'cambridge');(_:search,destination,'broxbourne');(_:search,type,'Train'))
user
I am traveling to cambridge   from broxbourne .
system
TR2939 will leave at 12:01 and arrive at 13:01 . Would you like to book this train ?
_:search category hotel
_:search name city centre north b and b
_:search type Hotel
_:search name city centre north b and b
_:system offered _:booking
_:booking type Booking
_:search category hotel
_:search has_parking yes
_:search type Hotel
_:result has_parking ?
_:result type Hotel
_:search name city centre north b and b
_:system offered _:booking
_:booking type Booking
_:search category hotel
_:search has_parking yes
_:result has_parking none
_:result phone 01223312843
_:result type Hotel
_:search day sunday
_:search type Train
_:search name city centre north b and b
_:system offered _:booking
_:booking type Booking
_:search category hotel
_:search has_parking yes
_:result has_parking none
_:result phone 01223312843
_:result type Hotel
_:search leave_at ?
_:search arrive_by 14:00
_:search day sunday
_:search type Train
_:search name city centre north b and b
_:system offered _:booking
_:booking type Booking
_:search category hotel
_:search has_parking yes
_:result has_parking none
_:result phone 01223312843
_:result type Hotel
_:search leave_at ?
_:search arrive_by 14:00
_:search day sunday
_:search departure cambridge
_:search destination broxbourne
_:search type Train