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: 'id like to find a moderately priced restaurant in the addenbrookes area'
System: 'What type of food would you like? For example, Fusion, Italian, or Turkish.'
User: 'um'
System: 'What type of food would you like? For example, International, Seafood, or Vegetarian.'
User: 'its a it doesnt matter'
System: 'What type of food would you like? For example, Cafe food, Northern european, or Chinese.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, the University Botanic Gardens, Castle Galleries, or Saint John's College.'
User: 'chinese'
System: 'There is no restaurant in the Addenbrooke's area and serving chinese food in the moderate price range.'
User: 'okay thank you goodbye'

Moderate

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 im looking for a coffee shop in the city centre'
System: 'Carringtons, which is an outstanding cafe and a great restaurant, is in the central part of town.'
User: 'may i have the phone number'
System: 'The phone number of Carringtons is 01223361792.'
User: 'may i have the address'
System: 'Carringtons is located on 23 Market Street.'
User: 'thank you goodbye'

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: 'background noise'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap.'
User: 'cafe'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'background noise'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'dont care'
System: 'What part of town do you have in mind? For example, something in the Arbury, Chesterton, or Fen Ditton area.'
User: 'dont care'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, Churchill College, or the Ruskin Gallery.'
User: 'dont care'
System: 'The Cambridge Blue is a great cafe.'
User: 'background noise'
System: 'The Cambridge Blue is a great cafe.'
User: 'i need the address and postcode'
System: 'The Cambridge Blue, which is in the area with the postcode CB2 1DB, is on 24 Regent Street.'
User: 'thank you good bye'


Don't Care