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.

[EX 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: 'uh can you find me a mexicana texmex restaurant in the expensive price range'
System: 'Nanna Mexico is a great restaurant, it serves mexican and tex mex food and it's in the expensive price range.'
User: 'ok what is the phone number and address of the venue'
System: 'Nanna Mexico is located on 33 Regent Street and its phone number 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: 'ok what is the address of the venue'
System: 'Nanna Mexico is located on 33 Regent Street.'
User: 'ok thank you goodbye'

[EX A]: Expensive

[EX 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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'noise sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'noise looking for a coffee shop serving italian food'
System: 'Are you looking for somewhere near a particular venue? For example, the Gallery at twelve A High Street, the Ruskin Gallery, or the Lammas Land Park.'
User: 'coffee shop with italian food'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Arbury, or Fen Ditton area.'
User: 'reston gallery'
System: 'Caffe Nero, which serves italian food, is an outstanding cafe.'
User: 'fenditton'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Chesterton, or Newnham area.'
User: 'what is the address'
System: 'Caffe Nero is located on 11 Market Street.'
User: 'any area'
System: 'Caffe Nero is an outstanding cafe.'
User: 'what is the post code'
System: 'Caffe Nero is in the area with the postcode CB2 3PA.'
User: 'what is the post code'
System: 'Caffe Nero is in the area with the postcode CB2 3PA.'
User: 'thank you good bye'

[EX A]: Expensive

[EX 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: 'unintelligible'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'a cheap restaurant in cherry hinton area'
System: 'What type of food would you like? For example, English, Greek, or Traditional.'
User: 'traditional'
System: 'There is no restaurant in the Cherry Hinton area and serving traditional food.'
User: 'do you have a greek restaurant'
System: 'Let me confirm. You don't care about the area and you are looking for a venue.'
User: 'yes'
System: 'The Eraina Taverna, which serves greek food, is an outstanding restaurant.'
User: 'what is the address'
System: 'The Eraina Taverna is on 2 Free School Lane.'
User: 'what is the phone number'
System: 'The phone number of the Eraina Taverna is 01223902126.'
User: 'what type of food'
System: 'The Eraina Taverna serves greek food.'
User: 'in what area'
System: 'The Eraina Taverna is in the central part of town.'
User: 'do you have one in cherry hinton area'
System: 'There is no restaurant in the Cherry Hinton area and serving greek food.'
User: 'do you have a restaurant in the cherry hinton area'
System: 'Can I help you with anything else?'
User: 'breathing'
System: 'HK Fusion is an outstanding restaurant and it's in the Cherry Hinton part of town.'
User: 'unintelligible'
System: 'HK Fusion is a great restaurant and it's in the Cherry Hinton part of town.'
User: 'what is the address'
System: 'HK Fusion is on 21 Burleigh Street.'
User: 'what is the address and phone number'
System: 'HK Fusion is located on 21 Burleigh Street and its phone number is 01223355909.'
User: 'phnne number'
System: 'The phone number of HK Fusion is 01223355909.'
User: 'what type of food'
System: 'HK Fusion serves chinese food.'
User: 'type of food'
System: 'HK Fusion is an outstanding restaurant.'
User: 'thank you good bye'

[EX A]:
Cheap