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 an expensive restaurant in the fen ditton area'
System: 'What type of food would you like? For example, Italian, Japanese, or Seafood.'
User: 'italian'
System: 'Are you looking for somewhere near a particular venue? For example, Cafe Jello, Downing College, or the Gallery at twelve A High Street.'
User: 'any'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Castle Hill, or Cherry Hinton area.'
User: 'fen ditton area'
System: 'Are you looking for somewhere near a particular venue? For example, Artworks, Clare Hall, or Jesus College.'
User: 'no'
System: 'The Sorrento is an outstanding restaurant, it serves italian food and it's in the expensive price range.'
User: 'id like to know the address phone number and type of food'
System: 'The Sorrento is on 196 Cherry Hinton Road and its phone number is 01223243533.'
User: 'unintelligible'
System: 'The phone number of The Sorrento is 01223243533.'
User: 'id like the address'
System: 'The Sorrento is on 196 Cherry Hinton Road.'
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: 'Can I help you with anything else?'
User: 'im looking for a chinese takeaway restaurant in a cheap price range'
System: 'La Raza, which is in the cheap price range, is an outstanding restaurant.'
User: 'chinese restaurant'
System: 'The Golden Palace, which serves chinese food, is an outstanding restaurant. It's in the cheap price range.'
User: 'what is the phone number and price of the venue'
System: 'The Golden Palace is located on 19 Hatter Street and its phone number is 01284754311. The price for main courses ranges from 2 pounds 20 to 5 pounds 50.'
User: 'is it a chinese takeaway restaurant'
System: 'The Golden Palace, which serves chinese food, is a great restaurant. It's in the cheap price range.'
User: 'thank you goodbye'

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: '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