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: 'sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'expensive restaurant in trumpington area'
System: 'What type of food would you like? For example, pub, American, or Greek.'
User: 'expensive restaurant in trumpington area'
System: 'What type of food would you like? For example, Greek, Middleeastern, or Vegetarian.'
User: 'expensive restaurant in trumpington area'
System: 'What type of food would you like? For example, pub, English, or Italian.'
User: 'i dont care'
System: 'The Oak Bistro, which is in the Trumpington part of town, is a great restaurant.'
User: 'english'
System: 'The Oak Bistro is located on 6 Lensfield Road.'
User: 'whats the address'
System: 'The Oak Bistro is located on 6 Lensfield Road.'
User: 'whats the phone number'
System: 'The phone number of The Oak Bistro is 01223323361.'
User: 'th whats the phone number'
System: 'The phone number of The Oak Bistro is 01223323361.'
User: 'whats the price'
System: 'The Oak Bistro is a great venue. The price for main courses ranges from 11 pounds 50 to 17 pounds 75.'
User: '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? I can't hear you. 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, a pub, or a restaurant.'
User: 'im looking for a cheap pub and it should be in the riverside area'
System: 'Are you looking for a venue that allows children?'
User: 'background noise'
System: 'Are you looking for a venue that allows children?'
User: 'a pub'
System: 'Are you looking for somewhere near a particular venue? For example, Emmanuel College, King's College, or Wandlebury Country Park.'
User: 'no'
System: 'The Bakers, which is in the riverside part of town, is an outstanding pub. It's in the cheap price range.'
User: 'background noise'
System: 'The Bakers is a great pub, it's in the riverside part of town and it's in the cheap price range.'
User: 'in the riverside area'
System: 'The Bakers, which is in the riverside part of town, is an outstanding pub. It's in the cheap price range.'
User: 'are there any other pubs'
System: 'The Avery is an outstanding pub, it's in the riverside part of town and it's in the cheap price range.'
User: 'are there any pubs'
System: 'The Bakers is a great pub. It's in the riverside part of town. It's in the cheap price range.'
User: 'any other pubs'
System: 'The Avery in the cheap price range, The Bakers, The Avery and the only pub are the only pubs in the riverside area.'
User: 'is it in the cheap price range'
System: 'The Bakers is a great venue. The price for main courses ranges from 6 pounds to 8 pounds 49 and the price for a cheapest pint of beer is 2 pounds 25.'
User: 'can i have the address for the avery'
System: 'The Bakers is on 176 East Road.'
User: 'breathing'
System: 'The Bakers is a great pub.'
User: 'does it have tv'
System: 'The Bakers has a television.'
User: 'background noise'
System: 'The Bakers is an outstanding pub.'
User: 'does the avery have a television'
System: 'The phone number of The Bakers is 01223304121.'
User: 'sil'
System: 'The Bakers is a great pub.'
User: 'sil'
System: 'The Bakers is a great pub.'
User: 'thank you good bye'

[EX A]: Cheap

[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: 'unitelligible'
System: 'Can I help you with anything else?'
User: 'i want to find a coffee shop serving italian food i dont care about the price range'
System: 'What kind of venue are you looking for? For example, a pub.'
User: 'a coffee shop'
System: 'What type of food would you like? For example, Thai, Traditional, or Vegetarian.'
User: 'italian food'
System: 'Clowns, which serves italian food, is an outstanding cafe and a great restaurant.'
User: 'whats the address'
System: 'Clowns is on 54 King Street.'
User: 'whats the price'
System: 'Clowns is a great venue. The price for main courses ranges from 5 pounds to 11 pounds and the price for a cappuccino is 1 pound 50.'
User: 'thank you goodbye'

[EX A]:
Don't Care