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: 'moderately priced restaurant new chesterton area'
System: 'Hakka, which is in the New Chesterton part of town, is a great restaurant. It's in the moderate price range.'
User: 'noise'
System: 'Hakka, which is in the New Chesterton part of town, is a great restaurant. It's in the moderate price range.'
User: 'noise'
System: 'What type of food would you like? For example, Cafe food, or Italian.'
User: 'address'
System: 'Hakka is on 24 Milton Road.'
User: 'price'
System: 'Hakka is a great venue. The price for main courses ranges from 5 pounds to 13 pounds.'
User: 'thank you goodbye'


A: Moderate
****
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 cafe, or a pub.'
User: 'an expensive restaurant in the fen ditton area'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'expensive'
System: 'The Riverside Restaurant, which is in the Fen Ditton part of town, is an outstanding restaurant. It's in the expensive price range.'
User: 'expensive'
System: 'The Riverside Restaurant, which is in the Fen Ditton part of town, is an outstanding restaurant. It's in the expensive price range.'
User: 'what is the address'
System: 'The Riverside Restaurant is located on Cambridge Regional College, Newmarket Road.'
User: 'what is the phone number'
System: 'The phone number of the Riverside Restaurant is 01223418997.'
User: 'what it the type of food of the venue'
System: 'The Riverside Restaurant serves contemporary food.'
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: 'noise'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'noise'
System: 'What kind of venue are you looking for? For example, a restaurant.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'a restaurant'
System: 'What kind of price range are you looking for? For example, moderate.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'noise'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'expensive'
System: 'What type of food would you like? For example, Cafe food, pub, or Vegetarian.'
User: 'expensive'
System: 'What type of food would you like? For example, pub, American, or Continental.'
User: 'does not matter'
System: 'What type of food would you like? For example, Chinese take away, Contemporary, or Italian.'
User: 'american'
System: 'There is no restaurant serving american food in the expensive price range.'
User: 'italian'
System: 'Would you like an expensive price range, or you don't care?'
User: 'expensive'
System: 'Are you looking for somewhere near a particular venue? For example, Kettle's Yard, the Michaelhouse Centre, or Primavera.'
User: 'in the addenbrookes area'
System: 'The Sorrento, which is in the Addenbrooke's part of town, is a great restaurant. This place, which serves italian food, is in the expensive price range.'
User: 'what is the address and the post code'
System: 'The Sorrento, which is in the area with the postcode CB1 7AN, is on 196 Cherry Hinton Road. Its phone number is 01223243533.'
User: 'thank you goodbye'


A:
Expensive
****