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: 'i want to find a american restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'i do not care'
System: 'What part of town do you have in mind? For example, Arbury, or Chesterton.'
User: 'i do not care'
System: 'Would you like a girton area, or you don't care?'
User: 'i do not care'
System: 'Gourmet Burger , which serves american food, is an outstanding restaurant.'
User: 'what is the phone number and address'
System: 'Gourmet Burger  is on 43-45 Regent Street and its phone number is 01223312598.'
User: 'thank you good bye'
