inform((_:search,day,'tuesday');(_:search,departure,'cambridge');(_:search,destination,'ely');(_:search,type,'Train'))
user
I am leaving Tuesday and need to take a train from Cambridge to Ely
offer((_:booking,category,'Train');(_:booking,duration,'17 minutes');(_:booking,type,'Booking')) request((_:search,leave_at,?);(_:search,type,'Train'))
system
Certainly . It looks like the trip is 17 minutes long . When would you like to leave ?
inform((_:search,arrive_by,'11:15');(_:search,type,'Train'))
user
I need the train to arrive by 11:15 .
offer((_:booking,arrive_by,'10:07');(_:booking,category,'Train');(_:booking,id,'TR3246');(_:booking,type,'Booking'))
system
The TR3246 arrives at 10:07 , would you like to book that train ?
inform((_:search,type,'Train'))
user
When does that train depart ?
inform((_:result,leave_at,'09:50');(_:result,type,'Train'))
system
The train departs at 09:50 .
inform((_:search,type,'Hotel'))
user
Great .   I 'm not ready to book today though .   I am also looking for a place to stay .
request((_:booking,people,?);(_:booking,stay,?);(_:booking,type,'Booking');(_:search,name,?);(_:search,type,'Hotel'))
system
where are you staying and for how long and how many rooms please
inform((_:search,category,'guesthouse');(_:search,type,'Hotel'))
user
I do n't know where I am staying . I 'm looking for a guesthouse and I thought you could help .
request((_:search,pricerange,?);(_:search,type,'Hotel')) inform((_:result,amount,'a variety');(_:result,category,'guesthouses');(_:result,pricerange,'cheap');(_:result,pricerange,'expensive');(_:result,pricerange,'moderate');(_:result,type,'Hotel'))
system
There is a variety of guesthouses to choose from .   How much would you like to spend ?   We have cheap , moderate , and expensive .
inform((_:search,pricerange,'expensive');(_:search,type,'Hotel'))
user
I would like the expensive price range .
canthelp((_:search,pricerange,'expensive');(_:search,type,'Restaurant'))
system
I do n't have anything in the expensive range that fits that criteria .
inform((_:search,category,'hotel');(_:search,type,'Hotel'))
user
If you ca n't find a guesthouse , could you look for a hotel ?
request((_:search,area,?);(_:search,type,'Hotel')) inform((_:result,category,'hotels');(_:result,count,'5');(_:result,type,'Hotel'))
system
There are 5 available hotels . What area were you looking to stay ?
inform((_:search,area,'south');(_:search,type,'Hotel'))
user
i would prefer the south . are there any in that area ?
offer((_:booking,type,'Booking')) inform((_:result,area,'south');(_:result,category,'hotel');(_:result,count,'1');(_:result,name,'Lensfield Hotel');(_:result,pricerange,'expensive');(_:result,stars,'3-star');(_:result,type,'Hotel'))
system
There is one expensive hotel in the south -- The Lensfield Hotel . It is a 3-star hotel . Would you like to book a room ?
inform((_:search,day,'thursday');(_:search,people,'3');(_:search,stay,'5');(_:search,type,'Hotel')) request((_:result,ref,?);(_:result,type,'Hotel'))
user
please book it for 3 people and 5 nights starting from Thursday . 
 Make sure you get the reference number
inform((_:booking,day,'Thursday');(_:booking,name,'Lensfield Hotel');(_:booking,people,'3');(_:booking,ref,'VOGVC4RY');(_:booking,stay,'5');(_:booking,type,'Booking'))
system
The Lensfield Hotel will be expecting the 3 of you to arrive on Thursday and to stay for 5 nights . Your Reference number is : VOGVC4RY .
thank()
user
Great , that 's all I need , thanks so much for your help ! Have a great day !
system
Thank you for using the Cambridge TownInfo centre . Goodbye .
_:search day tuesday
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_:result area south
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_:result pricerange expensive
_:result stars 3-star
_:result type Hotel
_:search day thursday
_:search people 3
_:search stay 5
_:search type Hotel
_:result ref ?
_:booking day Thursday
_:booking name Lensfield Hotel
_:booking people 3
_:booking ref VOGVC4RY
_:booking stay 5
_:booking type Booking