inform((_:search,area,'centre');(_:search,has_parking,'yes');(_:search,type,'Hotel'))
user
Are there any hotels in the centre that have free parking , please ?
inform((_:result,category,'hotels');(_:result,count,'2');(_:result,name,'Gonville Hotel');(_:result,name,'University Arms Hotel');(_:result,type,'Hotel')) reqmore()
system
There are two hotels available : the Gonville Hotel and University Arms Hotel . Would you like more information on them ?
inform((_:search,stars,'4');(_:search,type,'Hotel'))
user
Does either one have a star of 4 ?
offer((_:booking,type,'Booking')) inform((_:result,name,'University Arms Hotel');(_:result,stars,'4');(_:result,type,'Hotel'))
system
University Arms Hotel is rated 4 stars . Would you like reservation ?
inform((_:search,has_internet,'yes');(_:search,type,'Hotel')) request((_:result,address,?);(_:result,has_internet,?);(_:result,type,'Hotel'))
user
Do they have internet and if so what is the address there ?
inform((_:result,address,'regent street');(_:result,has_internet,'none');(_:result,type,'Hotel'))
system
They do have free wifi . They are located on regent street .
inform((_:search,departure,'cambridge');(_:search,destination,'london liverpool street');(_:search,type,'Train'))
user
Thanks . I 'm also looking for a train from cambridge to london liverpool street ?
inform((_:result,count,'70');(_:result,type,'Train')) request((_:search,day,?);(_:search,leave_at,?);(_:search,type,'Train'))
system
I have 70 trains .   What day and time are you wanting to travel ?
inform((_:search,day,'sunday');(_:search,leave_at,'11:15');(_:search,type,'Train'))
user
Um , Sunday but after 11:15
request((_:search,people,?);(_:search,type,'Train'))
system
okay how many tickets please ?
inform((_:search,people,'3');(_:search,type,'Train')) request((_:result,ref,?);(_:result,type,'Train'))
user
3 people , please . And if I can also get the reference number .
reqmore() inform((_:booking,category,'Train');(_:booking,id,'TR9025');(_:booking,leave_at,'11:59');(_:booking,people,'3');(_:booking,ref,'9JASQYBJ');(_:booking,type,'Booking'))
system
I have booked 3 tickets on the TR9025 train leaving at 11:59 . Your Reference number is : 9JASQYBJ . 
 Will that be all today ?
thank()
user
Yes , thank you for your help !
system
You 're welcome . Thank you . Goodbye
_:search area centre
_:search has_parking yes
_:search type Hotel
_:search area centre
_:search has_parking yes
_:result category hotels
_:result count 2
_:result name Gonville Hotel
_:result name University Arms Hotel
_:result type Hotel
_:system inquired _:user
_:search stars 4
_:search type Hotel
_:search area centre
_:search has_parking yes
_:result category hotels
_:result count 2
_:system inquired _:user
_:search stars 4
_:system offered _:booking
_:booking type Booking
_:result name University Arms Hotel
_:result stars 4
_:result type Hotel
_:search has_internet yes
_:search type Hotel
_:result address ?
_:result has_internet ?
_:search area centre
_:search has_parking yes
_:result category hotels
_:result count 2
_:system inquired _:user
_:search stars 4
_:system offered _:booking
_:booking type Booking
_:result name University Arms Hotel
_:result stars 4
_:search has_internet yes
_:result address regent street
_:result has_internet none
_:result type Hotel
_:search departure cambridge
_:search destination london liverpool street
_:search type Train
_:search area centre
_:search has_parking yes
_:result category hotels
_:system inquired _:user
_:search stars 4
_:system offered _:booking
_:booking type Booking
_:result name University Arms Hotel
_:result stars 4
_:search has_internet yes
_:result address regent street
_:result has_internet none
_:search departure cambridge
_:search destination london liverpool street
_:result count 70
_:result type Train
_:search day sunday
_:search leave_at 11:15
_:search type Train
_:search area centre
_:search has_parking yes
_:result category hotels
_:system inquired _:user
_:search stars 4
_:system offered _:booking
_:booking type Booking
_:result name University Arms Hotel
_:result stars 4
_:search has_internet yes
_:result address regent street
_:result has_internet none
_:search departure cambridge
_:search destination london liverpool street
_:result count 70
_:result type Train
_:search day sunday
_:search leave_at 11:15
_:search people 3
_:search type Train
_:result ref ?
_:search area centre
_:search has_parking yes
_:result category hotels
_:search stars 4
_:system offered _:booking
_:result name University Arms Hotel
_:result stars 4
_:search has_internet yes
_:result address regent street
_:result has_internet none
_:search departure cambridge
_:search destination london liverpool street
_:result count 70
_:result type Train
_:search day sunday
_:search leave_at 11:15
_:search people 3
_:search type Train
_:result ref ?
_:system inquired _:user
_:booking category Train
_:booking id TR9025
_:booking leave_at 11:59
_:booking people 3
_:booking ref 9JASQYBJ
_:booking type Booking