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.

Q: 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 romsey area'
System: 'The Backstreet Bistro, which is in the Romsey part of town, is an outstanding restaurant. It's in the expensive price range.'
User: 'background noise'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, Fen Ditton, or Newnham area.'
User: 'the romsey area'
System: 'The Backstreet Bistro, which is in the Romsey part of town, is an outstanding restaurant. It's in the expensive price range.'
User: 'i need the phone number and postcode'
System: 'The phone number of the Backstreet Bistro is 01223306306. It's in the area with the postcode CB1 2QA.'
User: 'thank you good bye'


A: Expensive
****
Q: 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: 'restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, the Technology Museum, Emmanuel College, or the Michaelhouse Centre.'
User: 'italian restaurant'
System: 'What kind of price range are you looking for? For example, free. I can't hear you. What kind of price range are you looking for? For example, free.'
User: 'expensive'
System: 'Are you looking for somewhere near a particular venue? For example, the Folk Museum, Clare Hall, or Pembroke College.'
User: 'expensive'
System: 'Are you looking for somewhere near a particular venue? For example, Jesus College, Old Schools, or the Scott Polar Museum.'
User: 'cambridge college'
System: 'Are you looking for somewhere near a particular venue? For example, Castle Galleries, Christ's College, or Trinity College.'
User: 'any'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Castle Hill, or Cherry Hinton area.'
User: 'let me have an address'
System: 'What part of town do you have in mind? For example, something in the Fen Ditton, New Chesterton, or riverside area.'
User: 'thank you goodbye'


A: Expensive
****
Q: 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: 'noise sil'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'moderate price range a fusion restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Castle Galleries, Jesus College, or Little Saint Mary's.'
User: 'no'
System: 'Aki Teri, which serves fusion food, is a great restaurant. It's in the moderate price range.'
User: 'what is the address'
System: 'Aki Teri is on 3-5 Quayside.'
User: 'what is the area of the venue'
System: 'Aki Teri is in the riverside part of town.'
User: 'thank you good bye'


A:
Moderate
****