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 food'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'moderate'
System: 'What type of food would you like? For example, Contemporary, English, or French.'
User: 'chinese'
System: 'The J Restaurant, which serves chinese food, is a great restaurant. It's in the moderate price range.'
User: 'chinese'
System: 'The J Restaurant is a great restaurant, it serves chinese food and it's in the moderate price range.'
User: 'give me information'
System: 'Are you looking for somewhere near a particular venue? For example, Cafe Jello, Clare College, or the Gallery at twelve A High Street.'
User: 'the gallery at twelve and hide'
System: 'The J Restaurant is an outstanding restaurant, it serves chinese food and it's in the moderate price range.'
User: 'thats all i need'
System: 'The phone number of the J Restaurant is 01223307273.'
User: 'thank you good unintelligible'


A: Moderate
****
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: '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'


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: 'restaurant expensive area'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Indian, or International.'
User: 'i dont care'
System: 'Blue Spice, which is in the expensive price range, is an outstanding restaurant.'
User: 'romsey area'
System: 'The Backstreet Bistro is a great restaurant. It's in the Romsey part of town. It's in the expensive price range.'
User: 'address'
System: 'The Backstreet Bistro is located on 2 Sturton Street.'
User: 'sil'
System: 'The Backstreet Bistro is a great restaurant.'
User: 'price'
System: 'The Backstreet Bistro is a great venue. The price for main courses ranges from 10 pounds 95 to 14 pounds 25.'
User: 'thank you good'


A:
Expensive
****