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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'i am looking for an expensive thai'
System: 'Let me confirm. You are looking for a restaurant.'
User: 'a thai restaurant'
System: 'The Wrestlers, which serves thai food, is an outstanding restaurant. It's in the expensive price range.'
User: 'yes'
System: 'The Wrestlers, which serves thai food, is an outstanding restaurant. It's in the expensive price range.'
User: 'what is the address post'
System: 'The Wrestlers is located on 337 Newmarket Road.'
User: 'what is the address and postcode'
System: 'The Wrestlers, which is in the area with the postcode CB5 8JE, is located on 337 Newmarket Road.'
User: 'what is the postcode'
System: 'The Wrestlers is in the area with the postcode CB5 8JE.'
User: 'what is the phone number'
System: 'The phone number of The Wrestlers is 01223566554.'
User: 'what is the phone number'
System: 'The phone number of The Wrestlers is 01223566554.'
User: 'thank you goodbye'

[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: 'im looking for a moderately priced restaurant in the fen ditton area'
System: 'The Lion and Lamb, which is in the Fen Ditton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'may i have the phone number and address of the lion and lamb'
System: 'The Lion and Lamb is on High Street, Milton. Its phone number is 01223860202.'
User: 'thank you and goodbye'

[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: 'yes a restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'thai'
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, cheap, expensive, or moderate.'
User: 'i dont care'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, Kettle's Yard, the Michaelhouse Centre, or Old Schools.'
User: 'repeat'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, the Botanic Gardens, or Williams Art and Antiques.'
User: 'no'
System: 'The Wrestlers is a great restaurant and it serves thai food.'
User: 'no'
System: 'The Wrestlers is a great restaurant and it serves thai food.'
User: 'address'
System: 'The Wrestlers, which serves thai food, is a great restaurant.'
User: 'address'
System: 'The Wrestlers is located on 337 Newmarket Road.'
User: 'address'
System: 'The Wrestlers is an outstanding restaurant.'
User: 'phone number'
System: 'The phone number of The Wrestlers is 01223566554.'
User: 'price'
System: 'The Wrestlers is a great venue. 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: 'price'
System: 'The Wrestlers is a great venue. 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: 'thank you goodbye'

[EX A]:
Don't Care