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.

Ex Input:
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 a coffee shop that serves italian food'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, Kettle's Yard, Old Schools, or Saint Catharine's College.'
User: 'no'
System: 'Caffe Nero, which serves italian food, is an outstanding cafe.'
User: 'what is the address'
System: 'Caffe Nero is on 11 Market Street.'
User: 'what is the price'
System: 'Caffe Nero is an outstanding venue. The price for main courses ranges from 3 pounds 50 to 3 pounds 85 and the price for a cappuccino is 2 pounds 15.'
User: 'thank you good bye'


Ex Output:
Don't Care


Ex Input:
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 seafood restaurant in an expensive price range'
System: 'Loch Fyne, which serves seafood, is a great restaurant. It's in the expensive price range.'
User: 'ok thank you what is the address and phone number of the venue'
System: 'Loch Fyne is on 37 Trumpington Street and its phone number is 01223902103. The price for main courses ranges from 9 pounds to 20 pounds.'
User: 'ok thank you good bye'


Ex Output:
Expensive


Ex Input:
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: 'restaurant'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'i dont care about the price'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'im looking for a restaurant in trumpington'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'any price'
System: 'What kind of price range are you looking for? For example, free, or moderate. I can't hear you. What kind of price range are you looking for? For example, free, or moderate.'
User: 'do you have a restaurant in trumpington'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'moderate'
System: 'What type of food would you like? For example, Mediterranean, or Thai.'
User: 'expensive'
System: 'Would you like a venue with an expensive or moderate price range?'
User: 'thai'
System: 'Would you like a venue with an expensive or moderate price range?'
User: 'moderate'
System: 'What type of food would you like? For example, Mexican and Tex Mex, French, or Traditional.'
User: 'price range'
System: 'What type of food would you like? For example, English, Thai, or Traditional.'
User: 'french food'
System: 'There is no restaurant serving french food in the moderate price range.'
User: 'english food'
System: 'There is no restaurant in the Trumpington area and serving english food.'
User: 'do you have a restaurant in trumpington'
System: 'There is no restaurant in the Trumpington area and serving english food.'
User: 'do you have mexican food'
System: 'What type of food would you like? For example, Continental, Thai, or Vegetarian.'
User: 'do you have mexican food in trumpington'
System: 'There is no restaurant serving mexican and tex mex food in the moderate price range.'
User: 'vegetarian'
System: 'Would you like a moderate price range, or you don't care?'
User: 'do you have uh cheap price range'
System: 'There is no restaurant serving mexican and tex mex food in the cheap price range.'
User: 'yeah'
System: 'Would you like a venue with a cheap or moderate price range?'
User: 'goodbye'


Ex Output:

Don't Care


