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: 'im looking for the cafe food restaurant'
System: 'Subway, which serves cafe food, is an outstanding restaurant.'
User: 'find should have a cheap price range'
System: 'Subway is a great restaurant, it serves cafe food and it's in the cheap price range.'
User: 'uh what is the address and post code'
System: 'Subway, which is in the area with the postcode CB1 2AD, is located on 40-42 Mill Road. The price for main courses ranges from 1 pound 99 to 5 pounds 60.'
User: 'thank you goodbye'

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: 'noise sil'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'expensive'
System: 'Can I help you with anything else?'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'expensive'
System: 'Can I help you with anything else?'
User: 'expensive'
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.'
User: 'restaurant'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Fen Ditton, or Newnham area.'
User: 'romsey'
System: 'Are you looking for somewhere near a particular venue? For example, Saint John's College, Sidney Sussex College, or Williams Art and Antiques.'
User: 'noise sil'
System: 'What part of town do you have in mind? For example, something in the Arbury, Newnham, or riverside area.'
User: 'romsey'
System: 'Can I help you with anything else?'
User: 'expensive restaruan in the romsey area'
System: 'The Backstreet Bistro is a great restaurant, it's in the Romsey part of town and it's in the expensive price range.'
User: 'what is the address'
System: 'The Backstreet Bistro is located on 2 Sturton Street.'
User: 'what is the phone number'
System: 'The phone number of the Backstreet Bistro is 01223306306.'
User: 'what is the price'
System: 'The Backstreet Bistro is a great venue. The price for main courses ranges from 10 pounds 95 to 14 pounds 25.'
User: 'thank you good bye'

Expensive

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: 'yes im looking for a moderately priced restaurant in the cherry hinton area'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, Clare College, or Kettle's Yard.'
User: 'kettles yard'
System: 'What type of food would you like? For example, Mexican and Tex Mex, International, or Italian.'
User: 'mexican'
System: 'There is no restaurant in the Cherry Hinton area and serving mexican and tex mex food.'
User: 'italian food'
System: 'Would you like italian or X food?'
User: 'italian'
System: 'There is no restaurant in the Cherry Hinton area and serving italian food.'
User: 'it doesnt matter what type of food'
System: 'Would you like a cherry hinton area, or you don't care?'
User: 'a cherry hinton area'
System: 'Sitar Tandoori, which is in the Cherry Hinton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'moderately priced restaurant'
System: 'Sitar Tandoori is a great restaurant, it's in the Cherry Hinton part of town and it's in the moderate price range.'
User: 'can i get the phone number and the address'
System: 'Sitar Tandoori is located on 43 High Street, Cherry Hinton.'
User: 'may i have the price please'
System: 'Sitar Tandoori is an outstanding venue. The price for main courses ranges from 4 pounds 95 to 9 pounds 95.'
User: 'thank you good bye'


Moderate