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: 'background noise'
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 pub.'
User: 'i am looking for a moderately priced'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'pub'
System: 'The Anchor, which is in the moderate price range, is a great pub.'
User: 'i am looking for a moderately priced pub'
System: 'The Anchor, which is in the moderate price range, is a great pub.'
User: 'does it have a tv'
System: 'The Anchor has a television.'
User: 'does it have a v'
System: 'The Anchor is an outstanding pub.'
User: 'ah what'
System: 'The Anchor is a great pub.'
User: 'whats the address phone number'
System: 'The Anchor is on Silver Street.'
User: 'what is the address'
System: 'The Anchor is on Silver Street.'
User: 'whats the phone number'
System: 'The phone number of The Anchor is 01223353554.'
User: 'are children allowed'
System: 'The Anchor, which allows children, is in the moderate price range. It's an outstanding pub.'
User: 'thank you good bye'

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: 'i am looking for a greek restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Byard Art, Kettle's Yard, or the Michaelhouse Centre.'
User: 'no'
System: 'The Eraina Taverna, which serves greek food, is an outstanding restaurant.'
User: 'whats the address phone number and the price'
System: 'The Eraina Taverna is located on 2 Free School Lane and its phone number is 01223902126. The price for main courses ranges from 6 pounds 50 to 13 pounds 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: 'im looking for a moderately priced restaurant in the new chesterton area'
System: 'Hakka, which is in the New Chesterton part of town, is a great restaurant. It's in the moderate price range.'
User: 'what is the address and postcode'
System: 'Hakka is on 24 Milton Road and it's in the area with the postcode CB4 1JY.'
User: 'thank you goodbye'


Moderate