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 kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'chinese take away'
System: 'Would you like chinese or X food?'
User: 'chinese take away'
System: 'Would you like chinese or X food?'
User: 'chinese'
System: 'Are you looking for a cafe or a restaurant?'
User: 'chinese'
System: 'Are you looking for a cafe or a restaurant?'
User: 'sil'
System: 'Are you looking for a cafe or a restaurant?'
User: 'sil'
System: 'Are you looking for a cafe or a restaurant?'
User: 'sil'
System: 'Are you looking for a cafe or a restaurant?'
User: 'noise restaurant noise'
System: 'Are you looking for somewhere near a particular venue? For example, Little Saint Mary's, the Ruskin Gallery, or the Lammas Land Park.'
User: 'breathing chinese restaurant'
System: 'What part of town do you have in mind? For example, something in the Barnwell, central, or riverside area.'
User: 'sil'
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: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, Christ's College, King's College, or the Regency Gallery.'
User: 'noise i dont care'
System: 'The J Restaurant is a great restaurant and it serves chinese food.'
User: 'doesnt matter'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'is it cheap'
System: 'The J Restaurant is in the moderate price range.'
User: 'cheap'
System: 'The Lan Hong House is an outstanding restaurant, it serves chinese food and it's in the cheap price range.'
User: 'id like a cheap'
System: 'The Lan Hong House is a great restaurant, it serves chinese food and it's in the cheap price range.'
User: 'what is the phone number'
System: 'The phone number of the Lan Hong House is 01223355227.'
User: 'what is the phone number'
System: 'The phone number of the Lan Hong House is 01223355227.'
User: 'whats the post code'
System: 'The Lan Hong House is in the area with the postcode CB1 2LF.'
User: 'whats the post code'
System: 'The Lan Hong House is in the area with the postcode CB1 2LF.'
User: 'thank you'
System: 'The Lan Hong House is an outstanding restaurant.'
User: 'good bye'


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 cafe, a pub, or a restaurant.'
User: 'coffee shop serving italian food'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Barnwell, or Trumpington area.'
User: 'i dont care'
System: 'Caffe Nero, which serves italian food, is a great cafe.'
User: 'cheap price range'
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: 'address'
System: 'Caffe Nero is located on 11 Market Street.'
User: 'phone number'
System: 'The phone number of Caffe Nero is 01223307728.'
User: 'whats the area'
System: 'I am sorry but there is no information on Caffe Nero's area.'
User: 'what part of town'
System: 'I am sorry but there is no information on Caffe Nero's area.'
User: 'background noise'
System: 'Caffe Nero is a great cafe.'
User: 'thank you good bye'


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: 'background noise'
System: 'Can I help you with anything else?'
User: 'a mexian tex mex restaurant'
System: 'What kind of price range are you looking for? For example, moderate.'
User: 'any price any area'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'any price'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'any price'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'cheap'
System: 'There is no restaurant serving mexican and tex mex food in the cheap price range.'
User: 'moderate'
System: 'There is no restaurant serving mexican and tex mex food in the moderate price range.'
User: 'any price'
System: 'Would you like a mexican and tex mex food, or you don't care?'
User: 'mexican tex mex please'
System: 'There is no restaurant serving mexican and tex mex food in the moderate price range.'
User: 'expensive'
System: 'Would you like a venue with an expensive or moderate price range?'
User: 'yes'
System: 'Would you like a venue with an expensive or moderate price range?'
User: 'yes'
System: 'Would you like a venue with an expensive or moderate price range?'
User: 'yes'
System: 'Would you like a venue with an expensive or moderate price range?'
User: 'yes'
System: 'Would you like a venue with an expensive or moderate price range?'
User: 'thank you good bye'


SOLUTION:
Don't Care