Teacher: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.
Teacher: Now, understand the problem? Solve this instance: 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 venue are you looking for? For example, a pub.'
User: 'restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Castle Galleries, the Museum of Classical Archaeology, or Sheep's Green.'
User: 'new chester new chesterton'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'moderate'
System: 'Hakka, which is in the New Chesterton part of town, is a great restaurant. It's in the moderate price range.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, the Broughton House, Castle Galleries, or the Whipple Museum of the History of Science.'
User: 'repeat'
System: 'Are you looking for somewhere near a particular venue? For example, Emmanuel College, Gonville and Caius College, or the Whipple Museum of the History of Science.'
User: 'new chesterton'
System: 'Twenty-four is a great restaurant, it's in the Chesterton part of town and it's in the moderate price range.'
User: 'no'
System: 'Twenty-four, which is in the Chesterton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'how much'
System: 'Twenty-four is an outstanding venue. The price for main courses ranges from 6 pounds to 15 pounds.'
User: 'sil'
System: 'Twenty-four is an outstanding restaurant.'
User: 'sil'
System: 'Twenty-four is a great restaurant.'
User: 'thank you goodbye'

Student:
Moderate