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: 'unitelligible'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'unintelligible'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'mexican restaurant'
System: 'There is no restaurant in the Girton area and serving fastfood.'
User: 'sil'
System: 'Can I help you with anything else?'
User: 'unintelligible mexican restaurant'
System: 'Nanna Mexico, which serves mexican and tex mex food, is a great restaurant.'
User: 'sil'
System: 'Nanna Mexico, which serves mexican and tex mex food, is an outstanding restaurant.'
User: 'unintelligible'
System: 'Nanna Mexico, which serves mexican and tex mex food, is an outstanding restaurant.'
User: 'unintelligible'
System: 'There is no restaurant in the Girton area and serving mexican and tex mex food.'
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: 'im looking for a restaurant in chesterton in any price range'
System: 'Twenty-four is an outstanding restaurant and it's in the Chesterton part of town.'
User: 'whats the address and postcode'
System: 'Twenty-four, which is in the area with the postcode CB4 0FN, is on 24 Cambridge Science Park, Milton Road.'
User: 'thank you good bye'


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: 'coffee shop serving italian food and it should be expensive price range'
System: 'Caffe Nero is an outstanding cafe, it serves italian food and it's in the expensive price range.'
User: 'phone number and post code please'
System: 'The phone number of Caffe Nero is 01223307728 and it's in the area with the postcode CB2 3PA. 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: 'noise sil'
System: 'Caffe Nero, which serves italian food, is a great cafe. It's in the expensive price range.'
User: 'post code'
System: 'Caffe Nero is in the area with the postcode CB2 3PA.'
User: 'thank you and good bye'


A:
Expensive
****