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 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: 'alright'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'seafood restaurant'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, Girton, or Trumpington area.'
User: 'none'
System: 'Loch Fyne is an outstanding restaurant and it serves seafood.'
User: 'is it expensive'
System: 'Loch Fyne is in the expensive price range.'
User: 'what is the address'
System: 'Loch Fyne is on 37 Trumpington Street.'
User: 'what is the phone number'
System: 'The phone number of Loch Fyne is 01223902103.'
User: 'what is the price of the venue'
System: 'Loch Fyne is an outstanding venue. The price for main courses ranges from 9 pounds to 20 pounds.'
User: 'thank you good bye'

[EX A]: Expensive

[EX 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: 'moderately restaurant'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'moderate'
System: 'Caffe Uno is an outstanding restaurant and it's in the moderate price range.'
User: 'new chesterton area'
System: 'Hakka, which is in the New Chesterton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'phone number'
System: 'The phone number of Hakka is 01223568988.'
User: 'and the post code'
System: 'Hakka is in the area with the postcode CB4 1JY.'
User: 'thank you good bye'

[EX A]: Moderate

[EX 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 thai restaurant'
System: 'Let me confirm. You are looking for a thai venue.'
User: 'yes'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'i dont care'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, King's Hedges, or Romsey area.'
User: 'i dont care'
System: 'The Wrestlers, which serves thai food, is an outstanding restaurant.'
User: 'whisperingunintelligible'
System: 'The Wrestlers, which serves thai food, is a great restaurant.'
User: 'can you please give me the address and the price'
System: 'The Wrestlers is on 337 Newmarket Road. The price for main courses ranges from 8 pounds 50 to 9 pounds 70 and the price for a cheapest pint of beer is 3 pounds 30.'
User: 'sil'
System: 'The Wrestlers is a great restaurant.'
User: 'thank you good bye'

[EX A]:
Don't Care