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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'chinese take away'
System: 'Would you like chinese or X food?'
User: 'chinese take away'
System: 'Would you like chinese or X food?'
User: 'chinese'
System: 'Are you looking for a cafe or a restaurant?'
User: 'chinese'
System: 'Are you looking for a cafe or a restaurant?'
User: 'sil'
System: 'Are you looking for a cafe or a restaurant?'
User: 'sil'
System: 'Are you looking for a cafe or a restaurant?'
User: 'sil'
System: 'Are you looking for a cafe or a restaurant?'
User: 'noise restaurant noise'
System: 'Are you looking for somewhere near a particular venue? For example, Little Saint Mary's, the Ruskin Gallery, or the Lammas Land Park.'
User: 'breathing chinese restaurant'
System: 'What part of town do you have in mind? For example, something in the Barnwell, central, or riverside area.'
User: 'sil'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Cherry Hinton, or King's Hedges area.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, Christ's College, King's College, or the Regency Gallery.'
User: 'noise i dont care'
System: 'The J Restaurant is a great restaurant and it serves chinese food.'
User: 'doesnt matter'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'is it cheap'
System: 'The J Restaurant is in the moderate price range.'
User: 'cheap'
System: 'The Lan Hong House is an outstanding restaurant, it serves chinese food and it's in the cheap price range.'
User: 'id like a cheap'
System: 'The Lan Hong House is a great restaurant, it serves chinese food and it's in the cheap price range.'
User: 'what is the phone number'
System: 'The phone number of the Lan Hong House is 01223355227.'
User: 'what is the phone number'
System: 'The phone number of the Lan Hong House is 01223355227.'
User: 'whats the post code'
System: 'The Lan Hong House is in the area with the postcode CB1 2LF.'
User: 'whats the post code'
System: 'The Lan Hong House is in the area with the postcode CB1 2LF.'
User: 'thank you'
System: 'The Lan Hong House is an outstanding restaurant.'
User: 'good bye'


A: Cheap
****
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 a restaurant in trumpington'
System: 'Are you looking for somewhere near a particular venue? For example, Great Saint Mary's Church, Magdalene College, or Saint Catharine's College.'
User: 'no'
System: 'The Oak Bistro, which is in the Trumpington part of town, is an outstanding restaurant.'
User: 'what is its address'
System: 'The Oak Bistro is on 6 Lensfield Road.'
User: 'sil'
System: 'The Oak Bistro is a great restaurant.'
User: 'what is its price'
System: 'The Oak Bistro is an outstanding venue. The price for main courses ranges from 11 pounds 50 to 17 pounds 75.'
User: 'what is its phone number'
System: 'The phone number of The Oak Bistro is 01223323361.'
User: 'thank you good bye'


A: 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: 'international'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe.'
User: 'any'
System: 'What kind of venue are you looking for? For example, a pub.'
User: 'international'
System: 'Are you looking for a cafe or a restaurant?'
User: 'restaurant'
System: 'Giraffe is a great restaurant and it serves international food.'
User: 'unintelligible'
System: 'Giraffe is in the area with the postcode CB1 1NP.'
User: 'whats the address'
System: 'Giraffe is located on Christ's Lane.'
User: 'whats the phone number'
System: 'The phone number of Giraffe is 01223300707.'
User: 'whats the uh thank you and goodbye'


A:
Don't Care
****