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: 'oh thats right'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, central, or Girton area.'
User: 'new chesterton'
System: 'What type of food would you like? For example, American, Fastfood, or Turkish.'
User: 'turkey'
System: 'Are you looking for somewhere near a particular venue? For example, the Gallery at twelve A High Street, Little Saint Mary's, or The Fitzwilliam Museum.'
User: 'the new chesterton'
System: 'Hakka is a great restaurant and it's in the New Chesterton part of town.'
User: 'address'
System: 'What type of food would you like? For example, English, Seafood, or Turkish.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, the Technology Museum, Hughes Hall, or Little Saint Mary's.'
User: 'the address'
System: 'Are you looking for somewhere near a particular venue? For example, Cambridge Contemporary Art, Clare Hall, or Little Saint Mary's.'
User: 'sil'
System: 'What type of food would you like? For example, Cafe food, or French.'
User: 'sil'
System: 'What type of food would you like? For example, East asian, Seafood, or Thai.'
User: 'french'
System: 'What type of food would you like? For example, Chinese take away, Northern european, or Mediterranean.'
User: 'phone number'
System: 'The phone number of Hakka is 01223568988.'
User: 'and the address'
System: 'Hakka is an outstanding restaurant.'
User: 'thank you goodbye'

Example Output: Moderate

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 price range are you looking for? For example, cheap, or moderate.'
User: 'cheap fusion restaurant'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'cheap cheap very cheap'
System: 'The Dojo Noodle Bar, which serves fusion food, is an outstanding restaurant. It's in the cheap price range.'
User: 'i need the address phone number and price'
System: 'The Dojo Noodle Bar is located on Miller's Yard and its phone number is 01223363471. The price for main courses ranges from 5 pounds 70 to 7 pounds.'
User: 'noise'
System: 'The Dojo Noodle Bar is a great restaurant.'
User: 'noise'
System: 'The Dojo Noodle Bar is an outstanding restaurant.'
User: 'address phone number and price of the venue'
System: 'The Dojo Noodle Bar is on Miller's Yard. Its phone number is 01223363471. The price for main courses ranges from 5 pounds 70 to 7 pounds.'
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: 'i need an italian restaurant'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Romsey, or Trumpington area.'
User: 'trumpington'
System: 'There is no restaurant in the Trumpington area and serving italian food.'
User: 'central'
System: 'Can I help you with anything else?'
User: 'italian restaurant in the central area'
System: 'Strada, which is in the central part of town, is an outstanding restaurant. It serves italian food.'
User: 'phone number'
System: 'Strada is on 17 Trinity Street and its phone number is 01223352166.'
User: 'thank you goodbye'

Example Output:
Expensive