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: 'i need to find and expensive restaurant in the trumpington area'
System: 'What type of food would you like? For example, pub, Fusion, or Traditional.'
User: 'traditional'
System: 'What type of food would you like? For example, International, Thai, or Vegetarian.'
User: 'international'
System: 'There is no restaurant in the Trumpington area and serving international food.'
User: 'expensive restaurant in the trumpington area'
System: 'There is no restaurant serving international food in the expensive price range.'
User: 'restaurant in the trumpington area'
System: 'Would you like an international food, or you don't care?'
User: 'dont care'
System: 'The Oak Bistro is a great restaurant, it's in the Trumpington part of town and it's in the expensive price range.'
User: 'thank you good bye'


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: 'i am looking for a seafood restaurant with an expensive price range'
System: 'Loch Fyne, which serves seafood, is a great restaurant. It's in the expensive price range.'
User: 'please tell me the address and postcode'
System: 'Loch Fyne, which is in the area with the postcode CB2 1QY, is located on 37 Trumpington Street. The price for main courses ranges from 9 pounds to 20 pounds.'
User: 'thank you good bye'


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: 'im looking for a moderately priced restaurant in the barnwell area'
System: 'The Wheatsheaf, which is in the Barnwell part of town, is a great restaurant. It's in the moderate price range.'
User: 'what is its postcode'
System: 'The Wheatsheaf is in the area with the postcode CB5 9AD.'
User: 'what is its telephone number'
System: 'The phone number of the Wheatsheaf is 01223812196.'
User: 'thank you good bye'


A:
Moderate
****