TASK DEFINITION: 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.
PROBLEM: 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 part of town do you have in mind? For example, something in the Castle Hill, central, or Newnham area.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'northern european restaurant'
System: 'Polonia is an outstanding restaurant and it serves northern european food.'
User: 'i dont care'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, King's Hedges, or Romsey area.'
User: 'i dont care about the price range'
System: 'Polonia is a great venue. The price for main courses ranges from 1 pound 50 to 7 pounds 50.'
User: 'romsey area'
System: 'Polonia is in the riverside part of town.'
User: 'thank you and good bye'


SOLUTION: Don't Care

PROBLEM: 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 cheap restaurant in the girton area'
System: 'The Dojo Noodle Bar is an outstanding restaurant, it's in the Girton part of town and it's in the cheap price range.'
User: 'whats the address'
System: 'The Dojo Noodle Bar is located on Miller's Yard.'
User: 'whats the phone number'
System: 'The phone number of the Dojo Noodle Bar is 01223363471.'
User: 'what what type of food do they have'
System: 'The Dojo Noodle Bar serves fusion food.'
User: 'thank you goodbye'


SOLUTION: Cheap

PROBLEM: 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 restaurant.'
User: 'hello'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'id like a restaurant that serves cheap'
System: 'What type of food would you like? For example, Drinks and snacks only, Fastfood, or Vegetarian.'
User: 'pub food'
System: 'Are you looking for somewhere near a particular venue? For example, Pembroke College, The Fitzwilliam Museum, or Wandlebury Country Park.'
User: 'no particular area'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Cherry Hinton, or King's Hedges area.'
User: 'no particular part of town'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, central, or King's Hedges area.'
User: 'any part of town'
System: 'What type of food would you like? For example, Contemporary, Spanish, or Traditional.'
User: 'any part'
System: 'La Raza, which is in the cheap price range, is a great restaurant.'
User: 'what kind of food does it serve'
System: 'La Raza, which is in the cheap price range, is a great restaurant.'
User: 'what kind of food'
System: 'La Raza, which is in the cheap price range, is a great restaurant.'
User: 'what kind of food does the restaurant serve'
System: 'La Raza is an outstanding restaurant.'
User: 'i want a pub food restaurant'
System: 'The Fountain Inn, which serves pub food, is a great restaurant. It's in the cheap price range.'
User: 'that sounds good please give me the address and the phone number'
System: 'The Fountain Inn is on 12 Regent Street and its phone number is 01223366540.'
User: 'ou good bye'
System: 'The Fountain Inn is an outstanding restaurant. It serves pub food. It's in the cheap price range.'
User: 'thank you'
System: 'Can I help you with anything else?'
User: 'good bye'


SOLUTION:
Cheap