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.

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: 'im looking for a moderately priced restaurant in the cherry hinton area'
System: 'The Six Bells, High Saint, which is in the Cherry Hinton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'what is the address'
System: 'The Six Bells, High Saint is on 9 High Saint, Fulbourn.'
User: 'what type of food is it'
System: 'The Six Bells, High Saint serves pub food.'
User: 'thank you good bye'

Moderate

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 restaurant which serves drinks and snacks only'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'any price range'
System: 'The Fleur, which serves drinks and snacks, is a great restaurant.'
User: 'what is the phone number and price'
System: 'The phone number of The Fleur is 01223902183. The price for main courses ranges from 6 pounds 75 to 12 pounds 95 and the price for a cheapest glass of wine is 3 pounds 50.'
User: 'thank you goodbye'

Don't Care

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 id like a traditional restaurant in the expensive price range'
System: 'The Granta Bar is an outstanding restaurant and it serves traditional food. It's in the expensive price range.'
User: 'ok can i have the address and price'
System: 'The Riverside Restaurant is located on University Centre, Granta Place. The price for main courses ranges from 14 pounds 95 to 16 pounds 95.'
User: 'thank you goodbye'


Expensive