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.

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: 'background noise'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'hello'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'hello'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'um restaurant'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'i dont care'
System: 'What type of food would you like? For example, Chinese take away, pub, or English.'
User: 'cherry hinton'
System: 'What type of food would you like? For example, East asian, Mediterranean, or Vegetarian.'
User: 'i dont care it doesnt matter'
System: 'Are you looking for a pub or a restaurant?'
User: 'it doesnt matter'
System: 'Are you looking for a pub or a restaurant?'
User: 'a restaurant in cherry hinto'
System: 'Are you looking for somewhere near a particular venue? For example, the Book and Print Gallery, the Folk Museum, or the Regency Gallery.'
User: 'a restaurant in cherry hinton'
System: 'Are you looking for somewhere near a particular venue? For example, the Technology Museum, the Scott Polar Museum, or The Fitzwilliam Museum.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, Emmanuel College, Little Saint Mary's, or the Saint Barnabas Press Gallery.'
User: 'cherry hinton'
System: 'Are you looking for somewhere near a particular venue? For example, Christ's College, Clare College, or Saint Catharine's College.'
User: 'no cherry hinton'
System: 'Spice Merchants is an outstanding restaurant. It's in the Cherry Hinton part of town.'
User: 'no no'
System: 'Spice Merchants, which is in the Cherry Hinton part of town, is an outstanding restaurant.'
User: 'no'
System: 'Spice Merchants, which is in the Cherry Hinton part of town, is an outstanding restaurant.'
User: 'and what is the phone number'
System: 'The phone number of Spice Merchants is 01223843436.'
User: 'what is the phone number'
System: 'The phone number of Spice Merchants is 01223843436.'
User: 'well thank you'
System: 'Can I help you with anything else?'
User: 'throat clear thank you'
System: 'Can I help you with anything else?'
User: 'no thank you good bye'
System: 'Spice Merchants is a great restaurant.'
User: 'no thank you good bye'


A: Don't Care
****
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: 'im looking for an expensive restaurant in the castle hill area'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Girton, or Romsey area.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, Romsey, or Trumpington area.'
User: 'castle hill area'
System: 'Are you looking for somewhere near a particular venue? For example, the Technology Museum, the Botanic Garden, or Old Schools.'
User: 'no'
System: 'What type of food would you like? For example, Chinese, or Japanese.'
User: 'ah doesnt matter'
System: 'Blue Spice, which is in the expensive price range, is an outstanding restaurant.'
User: 'ah whats the phone number and post code'
System: 'Let me confirm. You don't care about the food. You are looking for a venue.'
User: 'thats right'
System: 'Are you looking for a pub or a restaurant?'
User: 'ah restaurant expensive restaurant'
System: 'The phone number of Blue Spice is 01223413337 and it's in the area with the postcode CB1 7DY.'
User: 'thank you good bye'


A: Expensive
****
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: 'im looking for an expensive restaurant in the addenbrookes area'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, the Broughton House, or Holy Trinity Church.'
User: 'no'
System: 'The Lucky Star is a great restaurant and it's in the Addenbrooke's part of town. It's in the expensive price range.'
User: 'what is the address phone number and postcode'
System: 'The Lucky Star, which is in the area with the postcode CB1 7DY, is located on Unit. Its phone number is 01223244277.'
User: 'what is the address'
System: 'The Lucky Star is on Unit.'
User: 'thank you goodbye'


A:
Expensive
****