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: 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 moderately priced coffee shop'
System: 'Are you looking for somewhere near a particular venue? For example, Cambridge Contemporary Art, Great Saint Mary's Church, or Primavera.'
User: 'no im not'
System: 'Cafe Eleven, which is in the moderate price range, is an outstanding cafe.'
User: 'can i get the phone number and the postcode'
System: 'The phone number of Cafe Eleven is 01223369157. It's in the area with the postcode CB1 1DG.'
User: 'thank you goodbye'

Example solution: Moderate
Example explanation: The user mentions that they are looking for a moderately priced coffee shop.

Problem: 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: 'restaurant'
System: 'What type of food would you like? For example, pub, Middleeastern, or Vegetarian.'
User: 'barnwell area'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Mediterranean, or Turkish.'
User: 'mexican'
System: 'Are you looking for somewhere near a particular venue? For example, Cambridge Contemporary Art, Little Saint Mary's, or Saint John's College.'
User: 'no'
System: 'Chiquito, which serves mexican and tex mex food, is an outstanding restaurant.'
User: 'barnwell area'
System: 'The Wheatsheaf is a great restaurant and it's in the Barnwell part of town.'
User: 'andr address'
System: 'The Wheatsheaf is located on Stow Road, Stow-Cum-Quy.'
User: 'address'
System: 'The Wheatsheaf is located on Stow Road, Stow-Cum-Quy.'
User: 'phone number'
System: 'The phone number of the Wheatsheaf is 01223812196.'
User: 'phone number'
System: 'The phone number of the Wheatsheaf is 01223812196.'
User: 'thank you goodbye'


Solution: Moderate