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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'noise sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'noise restaurant'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'expensive restaurant'
System: 'What type of food would you like? For example, Fusion, Japanese, or Spanish.'
User: 'expensive'
System: 'What type of food would you like? For example, English, Greek, or Japanese.'
User: 'dont care'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Chesterton, or King's Hedges area.'
User: 'in the addenbrooks area'
System: 'The Lucky Star is an outstanding restaurant, it's in the Addenbrooke's part of town and it's in the expensive price range.'
User: 'ad'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Girton, or Newnham area.'
User: 'addonbrookes'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Girton, or Newnham area.'
User: 'noise addonbrookes area'
System: 'The Lucky Star, which is in the Addenbrooke's part of town, is a great restaurant. It's in the expensive price range.'
User: 'addonbrookes'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Castle Hill, or central area.'
User: 'i need the address'
System: 'The Lucky Star is on Unit.'
User: 'addonbookes'
System: 'The Lucky Star is an outstanding restaurant.'
User: 'noise sil'
System: 'The Lucky Star is an outstanding restaurant.'
User: 'i need th'
System: 'The Lucky Star is an outstanding restaurant.'
User: 'i need the address phone number and post card'
System: 'The Lucky Star is located on Unit and its phone number is 01223244277. The price for main courses ranges from 12 pounds 99 to 14 pounds 99.'
User: 'i need the the address phone number and post code'
System: 'The Lucky Star, which is in the area with the postcode CB1 7DY, is located on Unit. Its phone number is 01223244277.'
User: 'whats the post code'
System: 'The Lucky Star is in the area with the postcode CB1 7DY.'
User: 'thank you good bye'


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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'what is an expensive pub'
System: 'There is no pub in the expensive price range.'
User: 'um what is an expensive pub'
System: 'There is no pub in the expensive price range.'
User: 'um'
System: 'Are you looking for somewhere near a particular venue? For example, Cafe Jello, Hughes Hall, or Magdalene College.'
User: 'what is a pub food restaurant thats expensive'
System: 'There is no pub in the expensive price range.'
User: 'okay whats a moderately priced pub food restaurant'
System: 'Can I help you with anything else?'
User: 'what is a moderately priced pub'
System: 'The Alma, which is in the moderate price range, is a great pub.'
User: 'whats the address'
System: 'The Alma is on Russell Court. I am sorry but there is no information on its area.'
User: 'what is the phone number'
System: 'The phone number of The Alma is 01223316722.'
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: 'hello i am looking for a spanish restaurant in the cheap price range'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Girton, or Trumpington area.'
User: 'i dont care'
System: 'La Raza is an outstanding restaurant, it serves spanish food and it's in the cheap price range.'
User: 'ok what is the address price of the venue'
System: 'La Raza is located on 4-6, The Basement, Rose Crescent. The price for main courses ranges from 1 pound 95 to 13 pounds 95 and the entrance for adults is 4 pounds.'
User: 'ok thank you good bye'


A:
Cheap
****