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: 'i want to have moderately priced restaurant in the kings hedges area'
System: 'The Ranch is a great restaurant, it's in the King's Hedges part of town and it's in the moderate price range.'
User: 'may i have the address phone number and postcode'
System: 'The Ranch is on 100 Histon Road and its phone number is 01223322772. It's in the area with the postcode CB4 3JP.'
User: 'thank you goodbye'

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: 'background noise'
System: 'What kind of venue are you looking for? For example, a cafe.'
User: 'i am looking for a fast food restaurant with a cheap price range'
System: 'Let me confirm. You are looking for a fastfood venue.'
User: 'yes'
System: 'Burger King, which serves fastfood, is a great restaurant. It's in the cheap price range.'
User: 'whats the phone number'
System: 'The phone number of Burger King is 01223322666. The price for main courses ranges from 1 pound 99 to 6 pounds 79.'
User: 'thank you good bye'

Cheap

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: 'noise'
System: 'Can I help you with anything else?'
User: 'im looking for indian restaurant'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'an expensive one'
System: 'Blue Spice is a great restaurant and it serves indian food. It's in the expensive price range.'
User: 'expensive'
System: 'Blue Spice, which serves indian food, is an outstanding restaurant. It's in the expensive price range.'
User: 'could i have the address phone number and post code'
System: 'Blue Spice is located on Unit F1, Cambridge Leisure Park, Clifton Way, its phone number is 01223413337 and it's in the area with the postcode CB1 7DY.'
User: 'address phone number post code'
System: 'Blue Spice, which is in the area with the postcode CB1 7DY, is on Unit F1, Cambridge Leisure Park, Clifton Way. Its phone number is 01223413337.'
User: 'thank you very much goodbye'


Expensive