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 cafe, or a restaurant.'
User: 'im looking for a restaurant in the romsey area'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'sil'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'expensive'
System: 'The Backstreet Bistro, which is in the Romsey part of town, is an outstanding restaurant. It's in the expensive price range.'
User: 'whats the address'
System: 'The Backstreet Bistro is on 2 Sturton Street.'
User: 'sil'
System: 'The Backstreet Bistro is an outstanding restaurant.'
User: 'whats the address'
System: 'The Backstreet Bistro is located on 2 Sturton Street.'
User: 'whats the phone number'
System: 'The phone number of the Backstreet Bistro is 01223306306.'
User: 'and whats the postcode'
System: 'The Backstreet Bistro is in the area with the postcode CB1 2QA.'
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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'im looking for a restaurant with only drinks and snacks'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, Little Saint Mary's, or the Saint Barnabas Press Gallery.'
User: 'no particular venue'
System: 'The Fleur, which serves drinks and snacks, is a great restaurant.'
User: 'what is the address'
System: 'The Fleur is located on 73 Humberstone Road.'
User: 'and price of the venue'
System: 'The Fleur is an outstanding venue. The price for main courses ranges from 6 pounds 75 to 12 pounds 95 and the price for a cheapest glass of wine is 3 pounds 50.'
User: 'what is the address'
System: 'The Fleur is on 73 Humberstone Road.'
User: 'thank you goodbye'


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: 'can i have an expensive greek restaurant'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'noise sil'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'expensive'
System: 'The Varsity, which serves greek food, is a great restaurant. It's in the expensive price range.'
User: 'can i have the address'
System: 'The Varsity is located on 35 Saint Andrew's Street.'
User: 'can i have the phone number'
System: 'The phone number of the Varsity is 01223356060.'
User: 'may i have the post code'
System: 'The Varsity is in the area with the postcode CB2 3AR.'
User: 'thank you good bye'


A:
Expensive
****