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: 'yes im looking for a cheap coffee shop'
System: 'Are you looking for somewhere near a particular venue? For example, the Botanic Garden, the Saint Barnabas Press Gallery, or the Whipple Museum of the History of Science.'
User: 'any area'
System: 'Clowns, which is a great cafe and an outstanding restaurant, is in the cheap price range.'
User: 'yes can i get the address and the price then'
System: 'Clowns is located on 54 King Street. The price for main courses ranges from 5 pounds to 11 pounds and the price for a cappuccino is 1 pound 50.'
User: 'ok thank you goodbye'

Cheap

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: 'unintelligible'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'an expensive restaurant in the fen ditton area'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'expensive'
System: 'The Riverside Restaurant, which is in the Fen Ditton part of town, is an outstanding restaurant. It's in the expensive price range.'
User: 'expensive'
System: 'The Riverside Restaurant, which is in the Fen Ditton part of town, is an outstanding restaurant. It's in the expensive price range.'
User: 'what is the address'
System: 'The Riverside Restaurant is located on Cambridge Regional College, Newmarket Road.'
User: 'what is the phone number'
System: 'The phone number of the Riverside Restaurant is 01223418997.'
User: 'what it the type of food of the venue'
System: 'The Riverside Restaurant serves contemporary food.'
User: 'thank you good bye'

Expensive

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'
System: 'What type of food would you like? For example, English, International, or Seafood.'
User: 'trumpington area'
System: 'Are you looking for somewhere near a particular venue? For example, Artworks, Downing College, or Holy Trinity Church.'
User: 'sil'
System: 'What type of food would you like? For example, American, Italian, or Traditional.'
User: 'holy trinity church'
System: 'There is no restaurant in the Trumpington area and serving turkish food.'
User: 'american'
System: 'There is no restaurant in the Trumpington area and serving american food.'
User: 'can um'
System: 'Would you like a trumpington area, or you don't care?'
User: 'okay thank you goodbye'


Expensive