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: 'looking for a coffee shop'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'doesnt matter'
System: 'Let me confirm. You don't care about the price range and you are looking for a venue.'
User: 'yes'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Mediterranean, or Turkish.'
User: 'italian'
System: 'Are you looking for somewhere near a particular venue? For example, Castle Galleries, the Museum of Classical Archaeology, or Primavera.'
User: 'no'
System: 'Caffe Nero, which serves italian food, is an outstanding cafe.'
User: 'what is the address'
System: 'Caffe Nero is on 11 Market Street.'
User: 'what is the price'
System: 'Caffe Nero is a great venue. The price for main courses ranges from 3 pounds 50 to 3 pounds 85 and the price for a cappuccino is 2 pounds 15.'
User: 'thank you g goodbye'

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: 'background noise'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'im looking for a restaurant that serves cafe food that is cheap'
System: 'Are you looking for a cafe or a restaurant?'
User: 'restaurant that serves cafe food'
System: 'Are you looking for a cafe or a restaurant?'
User: 'restaurant'
System: 'Subway, which serves cafe food, is a great restaurant. It's in the cheap price range.'
User: 'id like to know their phone number and area'
System: 'The phone number of Subway is 01223461323.'
User: 'what area is it in'
System: 'Subway is in the riverside part of town.'
User: 'alright thank you good bye'

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: 'moderately priced restaurant in the cherry hinton area'
System: 'Sitar Tandoori, which is in the Cherry Hinton part of town, is a great restaurant. It's in the moderate price range.'
User: 'may i have the address please'
System: 'Sitar Tandoori is on 43 High Street, Cherry Hinton.'
User: 'sil'
System: 'Sitar Tandoori is a great restaurant.'
User: 'may i have the address please'
System: 'Sitar Tandoori is on 43 High Street, Cherry Hinton.'
User: 'what is the type of food'
System: 'Sitar Tandoori serves indian food.'
User: 'sil'
System: 'Sitar Tandoori is an outstanding restaurant.'
User: 'thank you goodbye'


Moderate