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.

Example Input: 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: 'expensive restaurant'
System: 'What type of food would you like? For example, pub, Italian, or Spanish.'
User: 'fenditton area'
System: 'What type of food would you like? For example, Contemporary, Seafood, or Traditional.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, Cherry Hinton Water Play, the Gallery at twelve A High Street, or the People's Portraits Exhibition.'
User: 'fenditton area'
System: 'Let me confirm. You don't care about the food. You are looking for a venue.'
User: 'expensive restaurant'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'yes'
System: 'Are you looking for somewhere near a particular venue? For example, Clare Hall, the Gallery at twelve A High Street, or the Lammas Land Park.'
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 a great restaurant.'
User: 'address'
System: 'Blue Spice is on Unit F1, Cambridge Leisure Park, Clifton Way.'
User: 'phone number'
System: 'The phone number of Blue Spice is 01223413337.'
User: 'type of food'
System: 'Blue Spice is an outstanding restaurant.'
User: 'type of food'
System: 'Blue Spice is an outstanding restaurant.'
User: 'thank you good bye'

Example Output: Expensive

Example Input: 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: 'a cheap restaurant in the city centre area'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, Artspace, Holy Trinity Church, or Pembroke College.'
User: 'no'
System: 'La Raza is a great restaurant and it's in the central part of town.'
User: 'no'
System: 'La Raza, which is in the central part of town, is a great restaurant.'
User: 'whats the address'
System: 'La Raza is on 4-6, The Basement, Rose Crescent.'
User: 'whats the phone number'
System: 'The phone number of La Raza is 01223464550.'
User: 'cough'
System: 'La Raza is a great restaurant.'
User: 'cough'
System: 'La Raza is a great restaurant.'
User: 'cough'
System: 'La Raza is an outstanding restaurant.'
User: 'whats the price'
System: 'La Raza is a great venue. The price for main courses ranges from 1 pound 95 to 13 pounds 95 and the entrance for adults is 4 pounds.'
User: 'whats the price'
System: 'La Raza is an outstanding restaurant.'
User: 'thank you goodbye'
System: 'Can I help you with anything else?'
User: 'thank you goodbye'

Example Output: Cheap

Example Input: 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 cafe, or a pub.'
User: 'what is a restaurant in cherry hinton'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'doesnt matter'
System: 'What type of food would you like? For example, Fastfood, Greek, or Middleeastern.'
User: 'greek'
System: 'There is no restaurant in the Cherry Hinton area and serving greek food.'
User: 'what is a fast food restaurant in cherry hinton'
System: 'There is no restaurant in the Cherry Hinton area and serving greek food.'
User: 'what is a restaurant in cherry hinton'
System: 'Would you like a greek food, or you don't care?'
User: 'doesnt matter'
System: 'Are you looking for somewhere near a particular venue? For example, Cherry Hinton Water Play, Great Saint Mary's Church, or Sidney Sussex College.'
User: 'no'
System: 'Spice Merchants is a great restaurant and it's in the Cherry Hinton part of town.'
User: 'what is the address'
System: 'Spice Merchants is located on 60 Trumpington Road.'
User: 'what is the type of food'
System: 'Spice Merchants serves indian food.'
User: 'right thank you goodbye'
System: 'Spice Merchants is a great restaurant and it's in the Cherry Hinton part of town.'
User: 'thank you goodbye'

Example Output:
Don't Care