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: 'im looking for a spanish restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'a cheap spanish restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, the Book and Print Gallery, the Ruskin Gallery, or the Whipple Museum of the History of Science.'
User: 'no'
System: 'La Raza, which serves spanish food, is an outstanding restaurant. It's in the cheap price range.'
User: 'sil'
System: 'La Raza, which serves spanish food, is a great restaurant. It's in the cheap price range.'
User: 'no'
System: 'La Raza is a great restaurant and it serves spanish food. It's in the cheap price range.'
User: 'whats the phone number'
System: 'The phone number of La Raza is 01223464550.'
User: 'what is the phone number'
System: 'The phone number of La Raza is 01223464550.'
User: 'thank you goodbye'


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: 'noise'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'noise'
System: 'What kind of venue are you looking for? For example, a restaurant.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'a restaurant'
System: 'What kind of price range are you looking for? For example, moderate.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'noise'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'expensive'
System: 'What type of food would you like? For example, Cafe food, pub, or Vegetarian.'
User: 'expensive'
System: 'What type of food would you like? For example, pub, American, or Continental.'
User: 'does not matter'
System: 'What type of food would you like? For example, Chinese take away, Contemporary, or Italian.'
User: 'american'
System: 'There is no restaurant serving american food in the expensive price range.'
User: 'italian'
System: 'Would you like an expensive price range, or you don't care?'
User: 'expensive'
System: 'Are you looking for somewhere near a particular venue? For example, Kettle's Yard, the Michaelhouse Centre, or Primavera.'
User: 'in the addenbrookes area'
System: 'The Sorrento, which is in the Addenbrooke's part of town, is a great restaurant. This place, which serves italian food, is in the expensive price range.'
User: 'what is the address and the post code'
System: 'The Sorrento, which is in the area with the postcode CB1 7AN, is on 196 Cherry Hinton Road. Its phone number is 01223243533.'
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: 'sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'yes i uh im trying to find a mexican restaurant in the expensive price range'
System: 'Nanna Mexico, which serves mexican and tex mex food, is a great restaurant. It's in the expensive price range.'
User: 'can i get the phone number and area of the venue'
System: 'The phone number of Nanna Mexico is 01223902150. The price for main courses ranges from 5 pounds 35 to 15 pounds 50 and the price for a cappuccino is 2 pounds 95.'
User: 'the area of the restaurant'
System: 'Nanna Mexico, which serves mexican and tex mex food, is an outstanding restaurant. It's in the expensive price range.'
User: 'the address of the restaurant'
System: 'Nanna Mexico is located on 33 Regent Street.'
User: 'uh thank you goodbye'


A:
Expensive
****