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 Input:
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: 'background noise'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'thai restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, the Folk Museum, Kettle's Yard, or the Michaelhouse Centre.'
User: 'background noise'
System: 'What type of food would you like? For example, East asian, or Italian.'
User: 'background noise'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Chinese, or Mediterranean.'
User: 'background noise'
System: 'What type of food would you like? For example, East asian, pub, or Fusion.'
User: 'background noise'
System: 'What part of town do you have in mind? For example, something in the Arbury, Barnwell, or Newnham area.'
User: 'thai'
System: 'What part of town do you have in mind? For example, something in the New Chesterton, Newnham, or Romsey area.'
User: 'expensive price range'
System: 'Blue Spice, which is in the expensive price range, is an outstanding restaurant.'
User: 'thai restaurant'
System: 'The Wrestlers, which serves thai food, is a great restaurant. It's in the expensive price range.'
User: 'address'
System: 'The Wrestlers is located on 337 Newmarket Road. The price for main courses ranges from 8 pounds 50 to 9 pounds 70 and the price for a cheapest pint of beer is 3 pounds 30.'
User: 'thank you good bye'


Ex Output:
Expensive


Ex Input:
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: 'hello i am looking for a moderately priced restaurant in barnwell area'
System: 'The Wheatsheaf, which is in the Barnwell part of town, is a great restaurant. It's in the moderate price range.'
User: 'ok so can you please tell me the address and phone number of the restaurant'
System: 'The Wheatsheaf is the only restaurant in the Barnwell area in the moderate price range.'
User: 'what is the address and the phone number'
System: 'The Wheatsheaf is located on Stow Road, Stow-Cum-Quy and its phone number is 01223812196.'
User: 'sil'
System: 'The Wheatsheaf is an outstanding restaurant.'
User: 'ok ah what types of food'
System: 'The Wheatsheaf serves traditional food.'
User: 'ok what type of food unitelligible'
System: 'The Wheatsheaf serves traditional food.'
User: 'ok thank you good bye'


Ex Output:
Moderate


Ex Input:
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: 'yes a restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'thai'
System: 'Let me confirm. You are looking for a thai venue.'
User: 'yes'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'i dont care'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, Kettle's Yard, the Michaelhouse Centre, or Old Schools.'
User: 'repeat'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, the Botanic Gardens, or Williams Art and Antiques.'
User: 'no'
System: 'The Wrestlers is a great restaurant and it serves thai food.'
User: 'no'
System: 'The Wrestlers is a great restaurant and it serves thai food.'
User: 'address'
System: 'The Wrestlers, which serves thai food, is a great restaurant.'
User: 'address'
System: 'The Wrestlers is located on 337 Newmarket Road.'
User: 'address'
System: 'The Wrestlers is an outstanding restaurant.'
User: 'phone number'
System: 'The phone number of The Wrestlers is 01223566554.'
User: 'price'
System: 'The Wrestlers is a great venue. The price for main courses ranges from 8 pounds 50 to 9 pounds 70 and the price for a cheapest pint of beer is 3 pounds 30.'
User: 'price'
System: 'The Wrestlers is a great venue. The price for main courses ranges from 8 pounds 50 to 9 pounds 70 and the price for a cheapest pint of beer is 3 pounds 30.'
User: 'thank you goodbye'


Ex Output:

Don't Care


