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.
Example: 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 moderately priced coffee shop'
System: 'Are you looking for somewhere near a particular venue? For example, Cambridge Contemporary Art, Great Saint Mary's Church, or Primavera.'
User: 'no im not'
System: 'Cafe Eleven, which is in the moderate price range, is an outstanding cafe.'
User: 'can i get the phone number and the postcode'
System: 'The phone number of Cafe Eleven is 01223369157. It's in the area with the postcode CB1 1DG.'
User: 'thank you goodbye'

Example solution: Moderate
Example explanation: The user mentions that they are looking for a moderately priced coffee shop.

Problem: 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 pub.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'coffee shop'
System: 'Can I help you with anything else?'
User: 'coffee shop'
System: 'Are you looking for somewhere near a particular venue? For example, Pembroke College, the Saint Barnabas Press Gallery, or the Whipple Museum.'
User: 'cafe'
System: 'What type of food would you like? For example, Drinks and snacks only, Northern european, or Turkish.'
User: 'no'
System: 'What type of food would you like? For example, American, English, or Japanese.'
User: 'no'
System: 'Are you looking for somewhere near a particular venue? For example, the Book and Print Gallery, the Michaelhouse Centre, or The Fitzwilliam Museum.'
User: 'no'
System: 'The Cambridge Blue is an outstanding cafe.'
User: 'no'
System: 'The Cambridge Blue is an outstanding cafe.'
User: 'price'
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: 'price'
System: 'The Cambridge Blue is an outstanding venue. 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: 'moderate'
System: 'Cafe Eleven, which is in the moderate price range, is a great cafe.'
User: 'address'
System: 'Cafe Eleven is located on 11 Burleigh Street.'
User: 'address'
System: 'Cafe Eleven is located on 11 Burleigh Street.'
User: 'price'
System: 'Cafe Eleven is a great venue. The price for main courses ranges from 1 pound 50 to 6 pounds and the price for a cappuccino is 1 pound 75.'
User: 'sil'
System: 'Cafe Eleven is a great cafe.'
User: 'price'
System: 'Cafe Eleven is a great venue. The price for main courses ranges from 1 pound 50 to 6 pounds and the price for a cappuccino is 1 pound 75.'
User: 'telephone'
System: 'The phone number of Cafe Eleven is 01223369157.'
User: 'telephone'
System: 'The phone number of Cafe Eleven is 01223369157.'
User: 'thank you good bye'


Solution: Moderate