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: 'hi im looking for a pub food restaurant and it should have cheap price range'
System: 'The Fountain Inn, which serves pub food, is a great restaurant. It's in the cheap price range.'
User: 'alright can you please give me the address'
System: 'The Fountain Inn is on 12 Regent Street. The price for main courses ranges from 4 pounds 95 to 7 pounds 95 and the price for a glass of wine ranges from 3 pounds to 4 pounds 50 and the price for a cheapest pint of beer is 2 pounds.'
User: 'and the phone number please'
System: 'The phone number of The Fountain Inn is 01223366540.'
User: 'unintelligible thank you good bye'
System: 'What part of town do you have in mind? For example, central, or Fen Ditton.'
User: 'thank you good bye'

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: 'yes im looking for a cheap chinese take away restaurant'
System: 'Saigon City, which serves chinese take away, is a great restaurant. It's in the cheap price range.'
User: 'may i get the address'
System: 'Saigon City is on 169 High Street, Chesterton.'
User: 'may i have the phone number'
System: 'The phone number of Saigon City is 01223356555.'
User: 'may i get the postal code of the venue'
System: 'Saigon City is in the area with the postcode CB4 1NL.'
User: 'thank you good bye'

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: 'im looking for a cheap restaruant in addenbrookes'
System: 'What type of food would you like? For example, Fastfood, Mediterranean, or Traditional.'
User: 'i dont care what kind of food'
System: 'Are you looking for somewhere near a particular venue? For example, the Broughton House, Byard Art, or Jesus College.'
User: 'no'
System: 'La Raza, which is in the cheap price range, is an outstanding restaurant.'
User: 'is it in the addenbrookes area'
System: 'Let me confirm. You don't care about the food. You are looking for a venue.'
User: 'no i am looking for a restaurant in the cheap price range in the addenbrookes area'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'no thats not correct i am looking for a restaurant in the addenbrookes area in the cheap price range'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'can we start again'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'yes'
System: 'La Raza is in the central part of town. The price for main courses ranges from 1 pound 95 to 13 pounds 95 and the entrance for adults is 4 pounds.'
User: 'id look to look for restaurants'
System: 'The Peking Restaurant, which is in the Addenbrooke's part of town, is a great restaurant. It's in the cheap price range.'
User: 'um'
System: 'The Peking Restaurant is an outstanding restaurant. It's in the Addenbrooke's part of town. It's in the cheap price range.'
User: 'what sort of whats its phone number'
System: 'The phone number of the Peking Restaurant is 01223902166.'
User: 'what is its address'
System: 'The Peking Restaurant is located on Unit 3, The Belvedere, Homerton Street.'
User: 'what is its postcode'
System: 'The Peking Restaurant is in the area with the postcode CB2 8NX.'
User: 'thank you good bye'

Example Output:
Cheap