You will be given a definition of a task first, then some input of the task.
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 i would like to find a mexican tex restaurant in the expensive'
System: 'Are you looking for somewhere near a particular venue? For example, Kettle's Yard, the Scott Polar Museum, or Trinity College.'
User: 'price range'
System: 'Are you looking for somewhere near a particular venue? For example, Castle Galleries, the Lynne Strover Gallery, or Old Schools.'
User: 'it does not matter'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Chesterton, or New Chesterton area.'
User: 'castlehill area'
System: 'Are you looking for somewhere near a particular venue? For example, Holy Trinity Church, the Lynne Strover Gallery, or Magdalene College.'
User: 'holy trinity church'
System: 'Are you looking for somewhere near a particular venue? For example, Castle Galleries, Holy Trinity Church, or Trinity College.'
User: 'holy trinity vhurch'
System: 'Are you looking for somewhere near a particular venue? For example, the Technology Museum, Corpus Christi, or Great Saint Mary's Church.'
User: 'it does not matter'
System: 'Would you like a mexican and tex mex food, or you don't care?'
User: 'mexican texmex'
System: 'Are you looking for somewhere near a particular venue? For example, King's College, Old Schools, or the Regency Gallery.'
User: 'i am looking for a mexican texmex restaurant in the expensive price range'
System: 'Are you looking for somewhere near a particular venue? For example, Little Saint Mary's, Pembroke College, or Sidney Sussex College.'
User: 'thank you goodbye'

Output:
Expensive