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.

[EX Q]: 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: 'restaurant'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'moderately priced'
System: 'What type of food would you like? For example, Northern european, American, or Mediterranean.'
User: 'fen ditton area'
System: 'Can I help you with anything else?'
User: 'fen ditton area'
System: 'Are you looking for somewhere near a particular venue? For example, Hughes Hall, the Museum of Archaelogy and Anthropology, or Queens' College.'
User: 'fen ditton'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Northern european, or Indian.'
User: 'area'
System: 'What type of food would you like? For example, pub, Fusion, or Seafood.'
User: 'mexican'
System: 'There is no restaurant serving mexican and tex mex food in the moderate price range.'
User: 'mexican'
System: 'There is no restaurant serving mexican and tex mex food in the moderate price range.'
User: 'fen ditton area'
System: 'Would you like a moderate price range, or you don't care?'
User: 'moderate'
System: 'There is no restaurant in the Girton area and serving mexican and tex mex food.'
User: 'fen ditton'
System: 'Would you like a mexican and tex mex food, or you don't care?'
User: 'fen ditton area'
System: 'Would you like a mexican and tex mex food, or you don't care?'
User: 'i dont care'
System: 'The Rainbow Cafe, which is in the Girton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'address'
System: 'The Rainbow Cafe is located on 9a King's Parade. The price for main courses ranges from 7 pounds 95 to 10 pounds 95 and the price for a cappuccino is 1 pound 75.'
User: 'phone number'
System: 'The phone number of the Rainbow Cafe is 01223321551.'
User: 'thank you good bye'

[EX A]: Moderate

[EX Q]: 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 price range are you looking for? For example, free, or moderate.'
User: 'expensive'
System: 'Can I help you with anything else?'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'expensive'
System: 'Can I help you with anything else?'
User: 'expensive'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'noise sil'
System: 'What kind of venue are you looking for? For example, a pub.'
User: 'restaurant'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Fen Ditton, or Newnham area.'
User: 'romsey'
System: 'Are you looking for somewhere near a particular venue? For example, Saint John's College, Sidney Sussex College, or Williams Art and Antiques.'
User: 'noise sil'
System: 'What part of town do you have in mind? For example, something in the Arbury, Newnham, or riverside area.'
User: 'romsey'
System: 'Can I help you with anything else?'
User: 'expensive restaruan in the romsey area'
System: 'The Backstreet Bistro is a great restaurant, it's in the Romsey part of town and it's in the expensive price range.'
User: 'what is the address'
System: 'The Backstreet Bistro is located on 2 Sturton Street.'
User: 'what is the phone number'
System: 'The phone number of the Backstreet Bistro is 01223306306.'
User: 'what is the price'
System: 'The Backstreet Bistro is a great venue. The price for main courses ranges from 10 pounds 95 to 14 pounds 25.'
User: 'thank you good bye'

[EX A]: Expensive

[EX Q]: 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 am looking for a moderately priced restaurant in the addenbrookes area'
System: 'Nando's Restaurant, Cambridge Leisure Park, which is in the Addenbrooke's part of town, is a great restaurant. It's in the moderate price range.'
User: 'im sorry where was it'
System: 'What type of food would you like? For example, Drinks and snacks only, pub, or Middleeastern.'
User: 'im looking for a moderately priced restaurant in the addenbrookes area'
System: 'Nando's Restaurant, Cambridge Leisure Park, which is in the Addenbrooke's part of town, is a great restaurant. It's in the moderate price range.'
User: 'can you give me more information on prices'
System: 'Nando's Restaurant, Cambridge Leisure Park is a great venue. The price for main courses ranges from 3 pounds 50 to 12 pounds 45.'
User: 'what is the address and phone number'
System: 'Nando's Restaurant, Cambridge Leisure Park is located on Unit G5, Cambridge Leisure Park, Clifton Way and its phone number is 01223246568.'
User: 'thank you good bye'

[EX A]:
Moderate