The input is a conversation between an automated system and a user looking for suggestions for pubs, restaurants and coffee shops in Cambridge. In the dialogue, the user may provide some criteria for the type of place they want such as price range, cuisine, etc. Given such a dialogue, output the price range the user if looking for which can take one of four values: Cheap, Moderate, Expensive and Don't Care. Output cannot be any other value than the four values. Note that if the user asks for the prices of items provided at a pub, restaurant or coffee shop but doesn't mention the price range they are looking for then the correct classification will be Don't Care. If the user does not mention a particular price, the correct classification will be Don't Care.

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 an expensive coffee shop serving italian food'
System: 'Caffe Nero is a great cafe and it serves italian food. It's in the expensive price range.'
User: 'what is the phone number'
System: 'The phone number of Caffe Nero is 01223307728.'
User: 'what is the postcode'
System: 'Caffe Nero is in the area with the postcode CB2 3PA.'
User: 'thank you good bye'

Expensive

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: 'noise sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'restaurant'
System: 'What part of town do you have in mind? For example, Chesterton, or Fen Ditton.'
User: 'castle hill'
System: 'What type of food would you like? For example, Northern european, Chinese, or Indian.'
User: 'expensive'
System: 'What type of food would you like? For example, English, Fusion, or Traditional.'
User: 'expensive'
System: 'What type of food would you like? For example, Cafe food, Drinks and snacks only, or Seafood.'
User: 'um any expensive'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Cherry Hinton, or riverside area.'
User: 'castle hill'
System: 'Are you looking for somewhere near a particular venue? For example, Emmanuel College, Gonville and Caius College, or the Museum of Archaelogy and Anthropology.'
User: 'no'
System: 'Blue Spice, which is in the expensive price range, is a great restaurant.'
User: 'no'
System: 'Blue Spice, which is in the expensive price range, is an outstanding restaurant.'
User: 'no castle hill nice restaurant'
System: 'Blue Spice, which is in the expensive price range, is a great restaurant.'
User: 'um what is the'
System: 'What part of town do you have in mind? For example, Barnwell, or riverside.'
User: 'phone number and address'
System: 'Blue Spice is on Unit F1, Cambridge Leisure Park, Clifton Way. Its phone number is 01223413337.'
User: 'thank you good bye'

Expensive

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: 'sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'uh mediterranean restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'doesnt matter'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'sil'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, Trinity College, or the Whipple Museum of the History of Science.'
User: 'i dont care'
System: 'Nando's Restaurant, Cambridge Leisure Park, which serves mediterranean food, is an outstanding restaurant.'
User: 'no'
System: 'Nando's Restaurant, Cambridge Leisure Park is a great restaurant and it serves mediterranean food.'
User: 'what is the address'
System: 'Nando's Restaurant, Cambridge Leisure Park is located on Unit G5, Cambridge Leisure Park, Clifton Way.'
User: 'unintelligible'
System: 'Nando's Restaurant, Cambridge Leisure Park is an outstanding restaurant.'
User: 'what is the address'
System: 'Nando's Restaurant, Cambridge Leisure Park is located on Unit G5, Cambridge Leisure Park, Clifton Way.'
User: 'unintelligible'
System: 'Are you looking for a pub or a restaurant?'
User: 'what is the address'
System: 'Are you looking for a pub or a restaurant?'
User: 'looking for a mediterranean restaurant'
System: 'Let me confirm. You don't care about the location and you are looking for a venue.'
User: 'yes'
System: 'Nando's Restaurant, Cambridge Leisure Park is on Unit G5, Cambridge Leisure Park, Clifton Way.'
User: 'what is the address'
System: 'Nando's Restaurant, Cambridge Leisure Park is on Unit G5, Cambridge Leisure Park, Clifton Way.'
User: 'whats the phone number and price range'
System: 'The phone number of Nando's Restaurant, Cambridge Leisure Park is 01223246568. The price for main courses ranges from 3 pounds 50 to 12 pounds 45.'
User: 'thank you goodbye'


Don't Care