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: 'i need an expensive restaurant in the addenbrookes area'
System: 'Would you like a venue with a cheap or expensive price range?'
User: 'expensive'
System: 'What type of food would you like? For example, Cafe food, or Fusion.'
User: 'fusion'
System: 'Would you like a venue with an expensive pricerange or with no entrance fee?'
User: 'expensive'
System: 'What type of food would you like? For example, East asian, Fusion, or Spanish.'
User: 'fusion'
System: 'What type of food would you like? For example, International, Spanish, or Turkish.'
User: 'international'
System: 'There is no restaurant in the Addenbrooke's area and serving international food.'
User: 'fusion'
System: 'Would you like an addenbrooke's area, or you don't care?'
User: 'addenbrookes'
System: 'Would you like an international food, or you don't care?'
User: 'i dont care'
System: 'What part of town do you have in mind? For example, something in the central, Romsey, or Trumpington area.'
User: 'addenbrookes'
System: 'What part of town do you have in mind? For example, something in the central, Newnham, or Trumpington area.'
User: 'central'
System: 'Blue Spice, which is in the expensive price range, is an outstanding restaurant.'
User: 'thank you goodbye'


SOLUTION: Expensive

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 restaurant.'
User: 'restaurant'
System: 'What type of food would you like? For example, English, or French.'
User: 'restaurant'
System: 'What type of food would you like? For example, Contemporary, International, or Turkish.'
User: 'english'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, riverside, or Romsey area.'
User: 'breathing clicking english clicking'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'fenditton'
System: 'What part of town do you have in mind? For example, something in the Girton, Newnham, or riverside area.'
User: 'fenditton'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Castle Hill, or New Chesterton area.'
User: 'fenditton'
System: 'Are you looking for somewhere near a particular venue? For example, Jesus College, Milton Country Park, or the Saint Barnabas Press Gallery.'
User: 'fenditton'
System: 'There is no restaurant in the Girton area and serving english food.'
User: 'fenditton'
System: 'There is no restaurant in the Girton area and serving english food.'
User: 'clicking fenditton'
System: 'Would you like an english food, or you don't care?'
User: 'dont care'
System: 'Blue Spice is an outstanding restaurant. It's in the Girton part of town.'
User: 'what is the address'
System: 'Blue Spice is on Unit F1, Cambridge Leisure Park, Clifton Way.'
User: 'and the phone number'
System: 'The phone number of Blue Spice is 01223413337.'
User: 'thank you 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: 'yawning'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'im looking'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'expensive restaurant'
System: 'Let me confirm. You are looking for a venue in the expensive price range.'
User: 'expensive'
System: 'What type of food would you like? For example, Contemporary, Fusion, or Vegetarian.'
User: 'yes'
System: 'What part of town do you have in mind? For example, something in the Arbury, Castle Hill, or New Chesterton area.'
User: 'any food'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Girton, or Newnham area.'
User: 'addenbrookes'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'the addenbrookes area'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'yes'
System: 'Are you looking for a pub or a restaurant?'
User: 'a restaurant'
System: 'The Lucky Star is a great restaurant, it's in the Addenbrooke's part of town and it's in the expensive price range.'
User: 'a restaurant'
System: 'The Lucky Star is an outstanding restaurant. It's in the Addenbrooke's part of town. It's in the expensive price range.'
User: 'may i have the address'
System: 'The Lucky Star is located on Unit.'
User: 'what is the a'
System: 'The Lucky Star is in the Addenbrooke's part of town.'
User: 'what is the address'
System: 'The Lucky Star is located on Unit.'
User: 'and the phone number'
System: 'The phone number of the Lucky Star is 01223244277.'
User: 'thank you good bye'


SOLUTION:
Expensive