System: 'Thank you for calling the Cambridge Information system. Your call will be recorded for research purposes. You may ask for information about a place to eat, such as a restaurant, a pub, or a cafe. How may I help you?'
User: 'yes american restaurant'
System: 'Are you looking for a cafe or a restaurant?'
User: 'restaurant american'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'dont care'
System: 'What part of town do you have in mind? For example, Fen Ditton, or New Chesterton.'
User: 'address'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, the Folk Museum, or Jesus College.'
User: 'address'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, central, or Newnham area.'
User: 'address'
System: 'Are you looking for somewhere near a particular venue? For example, Corpus Christi, or King's College.'
User: 'american res'
System: 'Are you looking for somewhere near a particular venue? For example, Downing College, Jesus College, or the Museum of Classical Archaeology.'
User: 'kings college'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Chesterton, or riverside area.'
User: 'unintelligible'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, New Chesterton, or Trumpington area.'
User: 'river side'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, Newnham, or riverside area.'
User: 'trumpington'
System: 'There is no restaurant in the Trumpington area and serving american food.'
User: 'thank you good bye'
