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.

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: 'coughing'
System: 'Can I help you with anything else?'
User: 'sil'
System: 'Can I help you with anything else?'
User: 'restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Little Saint Mary's, the Michaelhouse Centre, or the Regency Gallery.'
User: 'a restaurant'
System: 'Let me confirm. You don't care about the location and you are looking for a venue.'
User: 'sil'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Barnwell, or New Chesterton area.'
User: 'north european'
System: 'Polonia, which serves northern european food, is an outstanding restaurant.'
User: 'barnwell'
System: 'The Wheatsheaf is an outstanding restaurant and it's in the Barnwell part of town.'
User: 'cheap price range'
System: 'The Wheatsheaf is an outstanding restaurant.'
User: 'what is the address'
System: 'The Wheatsheaf is on Stow Road, Stow-Cum-Quy. The price for main courses ranges from 4 pounds to 13 pounds and the price for a cheapest pint of beer is 2 pounds 65.'
User: 'is it in the cheap price range'
System: 'The Wheatsheaf is an outstanding restaurant.'
User: 'what is the address'
System: 'The Wheatsheaf is located on Stow Road, Stow-Cum-Quy. The price for main courses ranges from 4 pounds to 13 pounds and the price for a cheapest pint of beer is 2 pounds 65.'
User: 'what is the address'
System: 'The Wheatsheaf is located on Stow Road, Stow-Cum-Quy.'
User: 'what is the phone number'
System: 'The phone number of the Wheatsheaf is 01223812196.'
User: 'the phone number'
System: 'The phone number of the Wheatsheaf is 01223812196.'
User: 'thank you goodbye'

Cheap

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: 'i want to find a coffee shop serving english foo food'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Cherry Hinton, or Girton area.'
User: 'okay and it should have a cheap price range'
System: 'The Cambridge Blue, which serves english food, is an outstanding cafe. It's in the cheap price range.'
User: 'whats the address'
System: 'The Cambridge Blue is located on 24 Regent Street. The price for main courses ranges from 1 pound 20 to 2 pounds 50 and the price for a cappuccino is 1 pound 35.'
User: 'thank you goodbye'

Cheap

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: 'traditional restaurant'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'expensive'
System: 'Are you looking for somewhere near a particular venue? For example, the Broughton House Gallery, Castle Galleries, or the Scott Polar Museum.'
User: 'no'
System: 'The Riverside Restaurant is a great restaurant. This place, which serves traditional food, is in the expensive price range.'
User: 'what is the address'
System: 'The Granta Bar is located on University Centre, Granta Place.'
User: 'and the postcode'
System: 'The Granta Bar is in the area with the postcode CB2 1RU. I can't hear you. The Granta Bar is in the area with the postcode CB2 1RU.'
User: 'than'
System: 'The Granta Bar is an outstanding restaurant.'
User: 'thank you goodbye'


Expensive