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: 'im looking for a cheap restaurant and it should be in the castlehill area'
System: 'Are you looking for somewhere near a particular venue? For example, the Botanic Gardens, the Michaelhouse Centre, or Williams Art and Antiques.'
User: 'no'
System: 'What type of food would you like? For example, Drinks and snacks only, pub, or Fastfood.'
User: 'drinks and snacks'
System: 'There is no restaurant serving drinks and snacks in the cheap price range.'
User: 'anything then'
System: 'There is no restaurant serving drinks and snacks in the cheap price range.'
User: 'im looking for a cheap restaurant that should be in the castlehill area'
System: 'Would you like a drinks and snacks, or you don't care?'
User: 'i dont care'
System: 'La Raza, which is in the cheap price range, is a great restaurant.'
User: 'what is the address'
System: 'La Raza is located on 4-6, The Basement, Rose Crescent.'
User: 'and whats the post code'
System: 'La Raza is in the area with the postcode CB2 3LL.'
User: 'thank you goodbuy'

Cheap

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: 'unintelligible a fusion restaurant'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'i dont care'
System: 'The Dojo Noodle Bar is an outstanding restaurant and it serves fusion food.'
User: 'what is the address'
System: 'The Dojo Noodle Bar is located on Miller's Yard.'
User: 'what is the price'
System: 'The Dojo Noodle Bar is a great venue. The price for main courses ranges from 5 pounds 70 to 7 pounds.'
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: 'unintelligible'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'cheap restaurant in girton area'
System: 'The Dojo Noodle Bar is a great restaurant. It's in the Girton part of town. It's in the cheap price range.'
User: 'address'
System: 'The Dojo Noodle Bar is on Miller's Yard.'
User: 'price'
System: 'The Dojo Noodle Bar is an outstanding venue. The price for main courses ranges from 5 pounds 70 to 7 pounds.'
User: 'thank you good bye'


Cheap