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: 'unitelligible'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'unintelligible'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'mexican restaurant'
System: 'There is no restaurant in the Girton area and serving fastfood.'
User: 'sil'
System: 'Can I help you with anything else?'
User: 'unintelligible mexican restaurant'
System: 'Nanna Mexico, which serves mexican and tex mex food, is a great restaurant.'
User: 'sil'
System: 'Nanna Mexico, which serves mexican and tex mex food, is an outstanding restaurant.'
User: 'unintelligible'
System: 'Nanna Mexico, which serves mexican and tex mex food, is an outstanding restaurant.'
User: 'unintelligible'
System: 'There is no restaurant in the Girton area and serving mexican and tex mex food.'
User: 'thank you goodbye'

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: 'im looking for a moderately priced restaurant in the fenditton area'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'moderate'
System: 'What part of town do you have in mind? For example, something in the Chesterton, Fen Ditton, or New Chesterton area.'
User: 'fenditton'
System: 'What part of town do you have in mind? For example, something in the Arbury, King's Hedges, or Trumpington area.'
User: 'fenditton'
System: 'What part of town do you have in mind? For example, something in the central, New Chesterton, or Romsey area.'
User: 'area'
System: 'What part of town do you have in mind? For example, New Chesterton, or riverside.'
User: 'fenditton area'
System: 'What type of food would you like? For example, Italian, or Turkish.'
User: 'doesnt matter'
System: 'Are you looking for somewhere near a particular venue? For example, the Technology Museum, King's College, or The Fitzwilliam Museum.'
User: 'no'
System: 'The Six Bells, High Saint is a great restaurant and it's in the Cherry Hinton part of town. It's in the moderate price range.'
User: 'what part of town is it in'
System: 'The Six Bells, High Saint is an outstanding restaurant, it's in the Cherry Hinton part of town and it's in the moderate price range.'
User: 'im looking in the fenditton area'
System: 'The Six Bells, High Saint, which is in the Cherry Hinton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'th'
System: 'The Six Bells, High Saint, which is in the Cherry Hinton part of town, is a great restaurant. It's in the moderate price range.'
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: 'i would like a cheap pub'
System: 'Are you looking for a venue with a television?'
User: 'yes i am'
System: 'Are you looking for a venue with an internet connection?'
User: 'it doesnt matter'
System: 'The Baron of Beef, which is in the cheap price range, is an outstanding pub.'
User: 'is it in the riverside area'
System: 'I am sorry but there is no information on The Baron of Beef's area.'
User: 'i would like a pub in the riverside area please'
System: 'The Avery is a great pub. It's in the riverside part of town. It's in the cheap price range.'
User: 'and it has a television'
System: 'The phone number of The Avery is 01223323405.'
User: 'does it have a tv'
System: 'The Avery has a television.'
User: 'what is the address'
System: 'The Avery is on 69-73 Regent Street.'
User: 'thank you goodbye'


Cheap

