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: 'im looking for a cheap restaurant and it should be in the girton area'
System: 'The Dojo Noodle Bar, which is in the Girton part of town, is a great restaurant. It's in the cheap price range.'
User: 'what is the address and the postcode of the place'
System: 'The Dojo Noodle Bar, which is in the area with the postcode CB2 1RQ, is on Miller's Yard.'
User: 'whats the address'
System: 'The Dojo Noodle Bar is located on Miller's Yard.'
User: 'thank you good bye'

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: 'im looking for a indian restaurant and uh the price range can be expensive should be expensive'
System: 'Blue Spice, which serves indian food, is a great restaurant. It's in the expensive price range.'
User: 'can i get the phone number and the area'
System: 'Are you looking for a pub or a restaurant?'
User: 'restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, the Folk Museum, Clare College, or The Fitzwilliam Museum.'
User: 'and location i dont care'
System: 'What type of food would you like? For example, Chinese take away, Mediterranean, or Middleeastern.'
User: 'indian'
System: 'Blue Spice, which serves indian food, is a great restaurant. It's in the expensive price range.'
User: 'can i get the phone number and the area'
System: 'The phone number of Blue Spice is 01223413337. The price for main courses ranges from 12 pounds 50 to 12 pounds 50.'
User: 'can i get the unintelligible the area'
System: 'Blue Spice, which serves indian food, is a great restaurant. It's in the expensive price range.'
User: 'unintelligible the restaurant is situated'
System: 'Blue Spice, which serves indian food, is an outstanding restaurant. It's in the expensive price range.'
User: 'i know already where the unintelligible situated which area'
System: 'Blue Spice is the only restaurant in the expensive price range that serves indian food.'
User: 'i know which area'
System: 'Blue Spice is in the Girton part of town.'
User: 'in which area is blue spice restaurant'
System: 'Blue Spice is an outstanding restaurant.'
User: 'ok can i know in which area the blue spice is situated'
System: 'Blue Spice is an outstanding restaurant, it serves indian food and it's in the expensive price range.'
User: 'what is the location of this restaurant blue spice'
System: 'The Hotel du Vin is an outstanding restaurant and it's in the expensive price range.'
User: 'ok 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: 'noise sil'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'im looking for a fusion restaurant i dont care about the price'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'i dont care'
System: 'What kind of venue are you looking for? For example, a restaurant.'
User: 'anything'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'i want a fusion restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'doesnt matter'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'good bye thank you'

Example Output:
Don't Care