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: 'yes i am looking for a moderately priced pub in the castlehill area'
System: 'Are you looking for a venue that allows children?'
User: 'im looking for a venue that has internet'
System: 'There is no pub with an internet connection in the moderate price range.'
User: 'is there moderately'
System: 'There is no pub with an internet connection in the moderate price range.'
User: 'price range pub in the castlehill area'
System: 'Would you like a moderate price range, or you don't care?'
User: 'a moderate price range pub in the castlehill area'
System: 'Would you like a true internet connection, or you don't care?'
User: 'i dont care'
System: 'Are you looking for a venue that allows children?'
User: 'no'
System: 'The Anchor, which is in the moderate price range, is a great pub.'
User: 'may i have the phone number'
System: 'The phone number of The Anchor is 01223353554. The price for main courses ranges from 6 pounds 50 to 11 pounds and the price for a cheapest pint of beer is 2 pounds 70.'
User: 'does it have internet'
System: 'The Anchor doesn't have any internet connection.'
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: 'mexican tex mex restaurant in the expensive price range'
System: 'Nanna Mexico is a great restaurant. It serves mexican and tex mex food. It's in the expensive price range.'
User: 'whats the phone number'
System: 'The phone number of Nanna Mexico is 01223902150. The price for main courses ranges from 5 pounds 35 to 15 pounds 50 and the price for a cappuccino is 2 pounds 95.'
User: 'whats the postcode'
System: 'Nanna Mexico is in the area with the postcode CB2 1AB.'
User: 'thank you good bye'

Expensive

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.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'cheap restaurant in the romsey area'
System: 'What type of food would you like? For example, East asian, Continental, or Japanese.'
User: 'restaurant'
System: 'What type of food would you like? For example, American, French, or Spanish.'
User: 'sil'
System: 'What type of food would you like? For example, Continental, English, or International.'
User: 'unitelligible restaurant in the romsey area'
System: 'What type of food would you like? For example, Drinks and snacks only, Chinese, or Thai.'
User: 'continental'
System: 'Are you looking for somewhere near a particular venue? For example, Cafe Jello, Christ's College, or Little Saint Mary's.'
User: 'chinese'
System: 'HK Fusion, which serves chinese food, is an outstanding restaurant. It's in the cheap price range.'
User: 'romsey area'
System: 'HK Fusion is on 21 Burleigh Street.'
User: 'is it in the romsey area'
System: 'HK Fusion is an outstanding restaurant.'
User: 'phone number'
System: 'HK Fusion is an outstanding restaurant.'
User: 'phone number'
System: 'HK Fusion is an outstanding restaurant.'
User: 'what is the phone number'
System: 'The phone number of HK Fusion is 01223355909.'
User: 'thank you and have a good day'


Cheap

