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: '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'

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: 'unintelligible sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'unintelligible sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'im looking for a expensive pub food restaurant'
System: 'What type of food would you like? For example, American, Indian, or Japanese.'
User: 'restaurant with pub food'
System: 'Revolution is an outstanding restaurant. It serves pub food. It's in the expensive price range.'
User: 'pub food'
System: 'Revolution, which serves pub food, is an outstanding restaurant. It's in the expensive price range.'
User: 'may i have the address and area'
System: 'Revolution is located on 3-7 Downing Street.'
User: 'area'
System: 'Revolution is an outstanding restaurant.'
User: 'sil'
System: 'Revolution is a great restaurant.'
User: 'what area is the restaurant in'
System: 'Revolution is in the central part of town.'
User: 'in what area'
System: 'Revolution is in the central part of town.'
User: 'thank you and good bye'

Expensive

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: 'an english restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'i dont care'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Girton, or New Chesterton area.'
User: 'i dont care'
System: 'Carringtons is an outstanding cafe and a great restaurant and it serves cafe food and english food.'
User: 'can you please give me the address and the postcode'
System: 'Carringtons, which is in the area with the postcode CB2 3NZ, is located on 23 Market Street.'
User: 'alright thank you goodbye'


Don't Care