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: 'im looking for a moderately priced restaurant'
System: 'What type of food would you like? For example, Chinese take away, Fastfood, or Turkish.'
User: 'in kings hedges area'
System: 'The Ranch is an outstanding restaurant and it's in the King's Hedges part of town. It's in the moderate price range.'
User: 'can i know the address and the phone number'
System: 'The Ranch is located on 100 Histon Road and its phone number is 01223322772.'
User: 'thank you good bye'


SOLUTION: Moderate

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 price range are you looking for? For example, expensive, or moderate.'
User: 'sil'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'moderate'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'dont care'
System: 'What kind of venue are you looking for? For example, a restaurant.'
User: 'vegetarian restaurant'
System: 'The Rainbow Cafe, which serves traditional and vegetarian food, is a great restaurant. It's in the moderate price range.'
User: 'restaurant'
System: 'The Rainbow Cafe, which serves traditional and vegetarian food, is an outstanding restaurant. It's in the moderate price range.'
User: 'what is the phone number and price of the venue'
System: 'The phone number of the Rainbow Cafe is 01223321551. The price for main courses ranges from 7 pounds 95 to 10 pounds 95 and the price for a cappuccino is 1 pound 75.'
User: 'what is the phone number'
System: 'The phone number of the Rainbow Cafe is 01223321551.'
User: 'thank you have a good day'
System: 'Can I help you with anything else?'
User: 'sil'
System: 'Can I help you with anything else?'
User: 'sil'
System: 'The Rainbow Cafe is a great restaurant.'
User: 'thank you have a good day'


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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'continental restaurant expensive'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, Hughes Hall, or Wandlebury Country Park.'
User: 'continental restaurant expensive range'
System: 'What part of town do you have in mind? For example, Newnham, or Trumpington.'
User: 'n no'
System: 'Are you looking for somewhere near a particular venue? For example, Cambridge Contemporary Art, Christ's College, or Queens' College.'
User: 'no particular venue'
System: 'Alimentum, which serves continental and french food, is a great restaurant. It's in the expensive price range.'
User: 'repeat name'
System: 'Alimentum is an outstanding venue. The price for main courses ranges from 17 pounds 50 to 21 pounds and the price for a glass of wine ranges from 6 pounds 50 to 10 pounds 50.'
User: 'thats expensive really expensive'
System: 'Alimentum, which serves continental and french food, is an outstanding restaurant. It's in the expensive price range.'
User: 'address'
System: 'Alimentum is on 152-154 Hills Road.'
User: 'phone number'
System: 'The phone number of Alimentum is 01223413000.'
User: 'post code'
System: 'Alimentum is in the area with the postcode CB2 8PB.'
User: 'thank you good bye'


SOLUTION:
Expensive