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 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 im looking for a cheap restaurant in the addenbrooks area'
System: 'The Peking Restaurant is an outstanding restaurant, it's in the Addenbrooke's part of town and it's in the cheap price range.'
User: 'may i have the address'
System: 'The Peking Restaurant is on Unit 3, The Belvedere, Homerton Street.'
User: 'may i have the phone number'
System: 'The phone number of the Peking Restaurant is 01223902166.'
User: 'may i have the post code'
System: 'The Peking Restaurant is in the area with the postcode CB2 8NX.'
User: 'thank you goodbye'

Example Output: Cheap

Example 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: 'cough'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'a moderately priced restaurant in the trumpington area'
System: 'Are you looking for somewhere near a particular venue? For example, Clare College, Gonville and Caius College, or The Fitzwilliam Museum.'
User: 'anywhere'
System: 'Are you looking for somewhere near a particular venue? For example, Jesus College, or King's College.'
User: 'kings college'
System: 'What type of food would you like? For example, pub, Fusion, or Indian.'
User: 'thank you'
System: 'Can I help you with anything else?'
User: 'can i have the address and the price'
System: 'What type of food would you like? For example, International, Middleeastern, or Vegetarian.'
User: 'vegetarian'
System: 'There is no restaurant in the Trumpington area and serving vegetarian food.'
User: 'thank you goodbye'

Example Output: Moderate

Example 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: 'im looking for a moderately priced restaurant and it should be in the chesterton area'
System: 'There is no restaurant in the Chesterton area in the cheap price range.'
User: 'what about moderately priced'
System: 'Twenty-four is an outstanding restaurant and it's in the Chesterton part of town. It's in the moderate price range.'
User: 'is this in the new chesterton'
System: 'Twenty-four is in the Chesterton part of town. The price for main courses ranges from 6 pounds to 15 pounds.'
User: 'alright uh what about a moderately priced restaurant in new chesterton area'
System: 'Twenty-four is a great restaurant.'
User: 'giv can you please give me the address and the postcode'
System: 'Twenty-four, which is in the area with the postcode CB4 0FN, is on 24 Cambridge Science Park, Milton Road.'
User: 'thank you goodbye'

Example Output:
Moderate