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.

[Q]: 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'

[A]: Expensive


[Q]: 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'

[A]: Expensive


[Q]: 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: 'whistling moron'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'im looking for an italian restaurant with an expensive price range'
System: 'The Sorrento is a great restaurant, it serves italian food and it's in the expensive price range.'
User: 'what is the address'
System: 'The Sorrento is located on 196 Cherry Hinton Road. The price for main courses ranges from 9 pounds to 16 pounds 95.'
User: 'what is the phone number and post code'
System: 'The phone number of The Sorrento is 01223243533. It's in the area with the postcode CB1 7AN.'
User: 'thank you goodbye'

[A]:
Expensive


