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.

[EX 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 sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'im looking for a'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'an expensive restaurant in the fenditton area'
System: 'What type of food would you like? For example, Continental, French, or Indian.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, the Lynne Strover Gallery, the Regency Gallery, or Saint Catharine's College.'
User: 'looking for a french restaurant in the river side area'
System: 'The Hotel du Vin, which is in the riverside part of town, is a great restaurant. This place, which serves french food, is in the expensive price range.'
User: 'what is the phone number of the venue'
System: 'The phone number of the Hotel du Vin is 01223227330.'
User: 'im looking for a cheap pub with internet connection'
System: 'The Hotel du Vin is a great restaurant.'
User: 'i want to know the address phone number and area'
System: 'The Hotel du Vin is located on 15-19 Trumpington Street and its phone number is 01223227330.'
User: 'thank you good bye'

[EX A]: Cheap

[EX 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 sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'noise sil'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'a restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'cheap'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'free'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'a restaurant'
System: 'Are you looking for a cafe or a restaurant?'
User: 'noise sil'
System: 'Are you looking for a cafe or a restaurant?'
User: 'a restaurant'
System: 'Are you looking for a cafe or a restaurant?'
User: 'a fast food restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Christ's College, Clare College, or Primavera.'
User: 'i dont care about the area'
System: 'La Raza, which serves spanish food, is an outstanding restaurant. It's in the cheap price range.'
User: 'no not spanish food no fast food'
System: 'La Raza is on 4-6, The Basement, Rose Crescent.'
User: 'im looking for a fast food restaurant'
System: 'La Raza, which serves spanish food, is a great restaurant. It's in the cheap price range.'
User: 'im looking for a fast food restaurant'
System: 'La Raza, which serves spanish food, is an outstanding restaurant. It's in the cheap price range.'
User: 'fast food'
System: 'La Raza, which serves spanish food, is a great restaurant. It's in the cheap price range.'
User: 'not spanish food not spanish food fast'
System: 'What type of food would you like? For example, English, Fastfood, or Fusion.'
User: 'food'
System: 'What type of food would you like? For example, English, Greek, or International.'
User: 'fast food'
System: 'What type of food would you like? For example, Chinese take away, or American.'
User: 'american'
System: 'Gourmet Burger , which serves american food, is a great restaurant. It's in the cheap price range.'
User: 'whats the phone number'
System: 'The phone number of Gourmet Burger  is 01223312598.'
User: 'yawn sil'
System: 'Gourmet Burger  is an outstanding restaurant.'
User: 'whats the phone number'
System: 'The phone number of Gourmet Burger  is 01223312598.'
User: 'thank you good bye'

[EX A]: Cheap

[EX 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: 'i need an east asian restaurant'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'moderate price range'
System: 'Little Seoul, which serves east asian food, is an outstanding restaurant. It's in the moderate price range.'
User: 'thank you good bye'

[EX A]:
Expensive