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: 'uh can i get an expensive retaurant around castle hill'
System: 'What type of food would you like? For example, Mexican and Tex Mex, French, or Seafood.'
User: 'uh seafood'
System: 'Loch Fyne, which serves seafood, is a great restaurant. It's in the expensive price range.'
User: 'uh can i get a phone number please'
System: 'The phone number of Loch Fyne is 01223902103.'
User: 'breathing ok 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: 'a restaurant'
System: 'What type of food would you like? For example, East asian, pub, or Fusion.'
User: 'a greek restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, the Botanical Garden* Botanical Gardens, Clare College, or Hughes Hall.'
User: 'greek'
System: 'Are you looking for somewhere near a particular venue? For example, the Lynne Strover Gallery, Trinity College, or Wandlebury Country Park.'
User: 'no'
System: 'The Eraina Taverna, which serves greek food, is an outstanding restaurant.'
User: 'i need the price range'
System: 'The Eraina Taverna is a great venue. The price for main courses ranges from 6 pounds 50 to 13 pounds 95.'
User: 'the phone number and postcode of a greek restaurant'
System: 'The Varsity, which serves greek food, is a great restaurant.'
User: 'what is the phone number and postcode'
System: 'The phone number of the Varsity is 01223356060 and it's in the area with the postcode CB2 3AR.'
User: 'thank you goodbye'


A: 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: 'i am looking for a restaurant in fen ditton and i dont care about the price range'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'i do not care'
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, Cafe food, Middleeastern, or Seafood.'
User: 'i do not care'
System: 'What part of town do you have in mind? For example, Castle Hill, or Cherry Hinton.'
User: 'hoodington'
System: 'Let me confirm. You are looking for a venue in the Trumpington area.'
User: 'no im looking for a restaurant in hoodington'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'thank you good bye'


A:
Don't Care
****