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.

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: 'no'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: '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: 'whats the phone number'
System: 'The phone number of the Wheatsheaf is 01223812196.'
User: 'what the price range'
System: 'The Wheatsheaf is in the moderate price range.'
User: 'what type of food do they have'
System: 'The Wheatsheaf serves traditional food.'
User: 'thank you goodbye'

Moderate

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: 'cafe food restaurant'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'dont care'
System: 'What part of town do you have in mind? For example, something in the Barnwell, New Chesterton, or riverside area.'
User: 'dont care'
System: 'Carringtons, which serves cafe food, is a great cafe and an outstanding restaurant. It serves english food.'
User: 'phone number and price'
System: 'The phone number of Carringtons is 01223361792. The price for main courses ranges from 4 pounds 25 to 6 pounds 25 and the price for a cappuccino is 1 pound 95.'
User: 'thank you good bye'

Don't Care

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'


Moderate