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 cafe, a pub, or a restaurant.'
User: 'restaurant'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Fastfood, or Vegetarian.'
User: 'sil'
System: 'What type of food would you like? For example, Continental, Indian, or Thai.'
User: 'continental'
System: 'What part of town do you have in mind? For example, Castle Hill, or King's Hedges.'
User: 'continental'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Cherry Hinton, or King's Hedges area.'
User: 'expensive price range'
System: 'Alimentum, which serves continental and french food, is a great restaurant. It's in the expensive price range.'
User: 'dont know'
System: 'Are you looking for somewhere near a particular venue? For example, Byard Art, Old Schools, or Pembroke College.'
User: 'address'
System: 'Alimentum is on 152-154 Hills Road. The price for main courses ranges from 17 pounds 50 to 21 pounds and the price for a glass of wine ranges from 6 pounds 50 to 10 pounds 50.'
User: 'phone number'
System: 'The phone number of Alimentum is 01223413000.'
User: 'postcode'
System: 'Alimentum is in the area with the postcode CB2 8PB.'
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: 'need a cheap restaurant in the cherry hinton area'
System: 'Are you looking for a cafe or a restaurant?'
User: 'i dont care'
System: 'Are you looking for a pub or a restaurant?'
User: 'a restaurant'
System: 'Let me confirm. You are looking for a venue in the cheap price range.'
User: 'yes'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Greek, or Vegetarian.'
User: 'i dont care'
System: 'HK Fusion is a great restaurant, it's in the Cherry Hinton part of town and it's in the cheap price range.'
User: 'noise what is the address and the post code'
System: 'HK Fusion, which is in the area with the postcode CB1 1DG, is located on 21 Burleigh Street.'
User: 'thank you good bye'

Cheap

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 english restaurant in the high price range'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'unintelligible'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'unintelligible'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'expensive'
System: 'The Backstreet Bistro is a great restaurant, it serves contemporary and english food and it's in the expensive price range.'
User: 'expensive'
System: 'The Backstreet Bistro is an outstanding venue. The price for main courses ranges from 10 pounds 95 to 14 pounds 25.'
User: 'expensive expensive'
System: 'The Backstreet Bistro is a great restaurant, it serves contemporary food, it serves english food and it's in the expensive price range.'
User: 'what is the area and address'
System: 'The Backstreet Bistro is located on 2 Sturton Street and it's in the Romsey part of town.'
User: 'sil'
System: 'The Backstreet Bistro is an outstanding restaurant.'
User: 'what is the area'
System: 'The Backstreet Bistro is in the Romsey part of town.'
User: 'what is the address'
System: 'The Backstreet Bistro is on 2 Sturton Street.'
User: 'thank you goodbye'


Expensive