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: 'sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'a restaurant in the trumpington area'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'expensive'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, the Book and Print Gallery, or Williams Art and Antiques.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, Byard Art, Christ's College, or the Museum of Classical Archaeology.'
User: 'trumpington'
System: 'What type of food would you like? For example, Drinks and snacks only, Chinese, or Greek.'
User: 'sil'
System: 'What type of food would you like? For example, Continental, or Turkish.'
User: 'trumpington'
System: 'What type of food would you like? For example, Continental, Greek, or Seafood.'
User: 'i dont care'
System: 'Can I help you with anything else?'
User: 'i dont care'
System: 'Can I help you with anything else?'
User: 'yes'
System: 'Are you looking for somewhere near a particular venue? For example, Great Saint Mary's Church, Jesus College, or the Whipple Museum.'
User: 'yes'
System: 'Are you looking for somewhere near a particular venue? For example, the People's Portraits Exhibition, Saint Catharine's College, or Wandlebury Country Park.'
User: 'no'
System: 'The Oak Bistro is an outstanding restaurant, it's in the Trumpington part of town and it's in the expensive price range.'
User: 'no'
System: 'The phone number of The Oak Bistro is 01223323361.'
User: 'thank you goodbye'

Expensive

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: 'imlooking for an international restaurant in the moderate price range'
System: 'Giraffe, which serves international food, is an outstanding restaurant. It's in the moderate price range.'
User: 'whats the phone number and postcode'
System: 'The phone number of Giraffe is 01223300707 and it's in the area with the postcode CB1 1NP.'
User: 'thank you good bye'

Moderate

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 venue are you looking for? For example, a cafe, or a restaurant.'
User: 'noise sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'italian restaurant'
System: 'Would you like italian or X food?'
User: 'noise sil'
System: 'Would you like italian or X food?'
User: 'noise sil'
System: 'Would you like italian or X food?'
User: 'noise sil'
System: 'Would you like italian or X food?'
User: 'noise italian'
System: 'Let me confirm. You don't care about the location and you are looking for a venue.'
User: 'beeping sil'
System: 'Caffe Uno, which serves italian food, is an outstanding restaurant.'
User: 'italian noise'
System: 'Caffe Uno, which serves italian food, is an outstanding restaurant.'
User: 'noise sil'
System: 'Caffe Uno is on 32 Bridge Street.'
User: 'noise price range'
System: 'Caffe Uno is an outstanding venue. The price for main courses ranges from 6 pounds 95 to 16 pounds 95 and the price for a glass of wine ranges from 3 pounds 25 to 6 pounds 50.'
User: 'noise whats the price range'
System: 'Caffe Uno is in the moderate price range.'
User: 'noise sil'
System: 'Caffe Uno is an outstanding restaurant.'
User: 'noise sil'
System: 'Caffe Uno is a great restaurant.'
User: 'nosie sil'
System: 'Caffe Uno is an outstanding restaurant.'
User: 'thank you good bye'


Expensive