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: 'i need a restaurant in addonbrookes'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'noise sil'
System: 'What kind of price range are you looking for? For example, free.'
User: 'cheap'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'cheap'
System: 'What type of food would you like? For example, American, Chinese, or Italian.'
User: 'noise sil'
System: 'What part of town do you have in mind? For example, central, or Romsey.'
User: 'cheap'
System: 'What part of town do you have in mind? For example, New Chesterton, or Trumpington.'
User: 'addonbrooke'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Chesterton, or Girton area.'
User: 'addonbrookes'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, Fen Ditton, or Newnham area.'
User: 'addonbrookes'
System: 'Are you looking for somewhere near a particular venue? For example, the Botanical Garden* Botanical Gardens, Cherry Hinton Water Play, or Pembroke College.'
User: 'no just addonbrookes'
System: 'What part of town do you have in mind? For example, something in the Barnwell, King's Hedges, or New Chesterton area.'
User: 'addonbrookes'
System: 'What type of food would you like? For example, Chinese take away, Mexican and Tex Mex, or Italian.'
User: 'any any'
System: 'What type of food would you like? For example, Drinks and snacks only, or Continental.'
User: 'any'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Fen Ditton, or Girton area.'
User: 'noise sil'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Newnham, or Trumpington area.'
User: 'unintelligible addonbrookes'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Barnwell, or Trumpington area.'
User: 'addonbrookes area'
System: 'The Peking Restaurant is an outstanding restaurant, it's in the Addenbrooke's part of town and it's in the cheap price range.'
User: 'thank you thank you'
System: 'Can I help you with anything else?'
User: 'thank you good bye'

Student:
Cheap