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.

Q: 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: 'uh im looking for a cheap restaurant in the castlehill area'
System: 'What part of town do you have in mind? For example, something in the Newnham, riverside, or Trumpington area.'
User: 'in the uh castlehill in area'
System: 'What type of food would you like? For example, Greek, Japanese, or Seafood.'
User: 'uh dont care'
System: 'Blue Spice, which is in the expensive price range, is a great restaurant.'
User: 'whats the address'
System: 'Blue Spice is located on Unit F1, Cambridge Leisure Park, Clifton Way.'
User: 'the type of food'
System: 'Blue Spice serves indian food.'
User: 'thank you goodbye'


A: Expensive
****
Q: 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 chinese takeaway restaurant in the moderate price range'
System: 'Yippee Noodle Bar is a great restaurant, it serves chinese take away and japanese food and it's in the moderate price range.'
User: 'im a looking for a cheap price range'
System: 'Yippee Noodle Bar, which serves chinese take away, is a great restaurant. This place, which serves japanese food, is in the moderate price range.'
User: 'im looking for a restaurant in the cheap price range'
System: 'Saigon City, which serves chinese take away, is a great restaurant. It's in the cheap price range.'
User: 'what is its address'
System: 'Saigon City is on 169 High Street, Chesterton. The price for main courses ranges from 4 pounds 60 to 5 pounds 10.'
User: 'im looking for an restaurant that serves chinese take away food'
System: 'Saigon City is a great restaurant, it serves chinese take away and it's in the cheap price range.'
User: 'what is its post code'
System: 'Saigon City is in the area with the postcode CB4 1NL.'
User: 'what is its telephone number'
System: 'The phone number of Saigon City is 01223356555.'
User: 'sil'
System: 'Saigon City is an outstanding restaurant.'
User: 'breathing sil'
System: 'Would you like chinese or X food?'
User: 'thank you good bye'


A: Cheap
****
Q: 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 an expensive restaurant in the fenditton area'
System: 'Let me confirm. You don't care about the area and you are looking for a venue.'
User: 'an expensive restaurant in the fenditton area'
System: 'The Riverside Restaurant is an outstanding restaurant, it's in the Fen Ditton part of town and it's in the expensive price range.'
User: 'what is the address'
System: 'The Riverside Restaurant is located on Cambridge Regional College, Newmarket Road.'
User: 'and the phone number'
System: 'The phone number of the Riverside Restaurant is 01223418997.'
User: 'and what is the type of food'
System: 'The Riverside Restaurant serves contemporary food.'
User: 'thank you goodbye'


A:
Expensive
****