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: 'information'
System: 'Let me confirm. You are looking for a venue with an internet connection.'
User: 'no'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'im looking for a moderately priced coffee shop'
System: 'Are you looking for somewhere near a particular venue? For example, Kettle's Yard, the Museum of Classical Archaeology, or Sheep's Green.'
User: 'i would like to know the phone number and type of food'
System: 'Are you looking for somewhere near a particular venue? For example, the Broughton House Gallery, the Lynne Strover Gallery, or Sidney Sussex College.'
User: 'no'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, King's Hedges, or Romsey area.'
User: 'no'
System: 'What type of food would you like? For example, American, Continental, or Italian.'
User: 'background noise'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Girton, or Newnham area.'
User: 'background noise'
System: 'What type of food would you like? For example, Drinks and snacks only, or Japanese.'
User: 'i dont care'
System: 'Are you looking for a cafe or a pub?'
User: 'a coffee shop background talking moderately priced'
System: 'Are you looking for a cafe or a pub?'
User: 'a cafe moderately priced'
System: 'Are you looking for a cafe or a pub?'
User: 'a cafe'
System: 'What part of town do you have in mind? For example, something in the Chesterton, New Chesterton, or Romsey area.'
User: 'it doesnt matter'
System: 'The Auntie's Tea Shop is a great cafe. It's in the moderate price range.'
User: 'what is the phone and what time of food do they have'
System: 'The Auntie's Tea Shop, which serves english food, is located on 1 Saint Mary's Passage. Its phone number is 01223315641.'
User: 'background noise'
System: 'The Auntie's Tea Shop is an outstanding cafe.'
User: 'background talking what is the phone number'
System: 'The phone number of the Auntie's Tea Shop is 01223315641.'
User: 'what type of food do they have'
System: 'The Auntie's Tea Shop serves english food.'
User: 'what is the phone number'
System: 'The phone number of the Auntie's Tea Shop is 01223315641.'
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: 'yes im looking for a coffee shop in the city centre'
System: 'Carringtons, which is an outstanding cafe and a great restaurant, is in the central part of town.'
User: 'may i have the phone number'
System: 'The phone number of Carringtons is 01223361792.'
User: 'may i have the address'
System: 'Carringtons is located on 23 Market Street.'
User: 'thank you goodbye'


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: 'can i have an expensive east asian restaurant'
System: 'Shiraz, which serves east asian food, is a great restaurant. It's in the expensive price range.'
User: 'can i have the address please'
System: 'Shiraz is located on 84 Regent Street.'
User: 'can i have the phone number please'
System: 'The phone number of Shiraz is 01223902104.'
User: 'can i have the price range'
System: 'Shiraz is a great venue. The price for main courses ranges from 9 pounds to 14 pounds 15.'
User: 'background noise'
System: 'Shiraz is an outstanding restaurant, it serves east asian food and it's in the expensive price range.'
User: 'can i have the price venue'
System: 'Shiraz is an outstanding venue. The price for main courses ranges from 9 pounds to 14 pounds 15.'
User: 'thank you good bye'


SOLUTION:
Expensive

