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.

[Q]: 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: 'unitelligible'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'unintelligible'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'mexican restaurant'
System: 'There is no restaurant in the Girton area and serving fastfood.'
User: 'sil'
System: 'Can I help you with anything else?'
User: 'unintelligible mexican restaurant'
System: 'Nanna Mexico, which serves mexican and tex mex food, is a great restaurant.'
User: 'sil'
System: 'Nanna Mexico, which serves mexican and tex mex food, is an outstanding restaurant.'
User: 'unintelligible'
System: 'Nanna Mexico, which serves mexican and tex mex food, is an outstanding restaurant.'
User: 'unintelligible'
System: 'There is no restaurant in the Girton area and serving mexican and tex mex food.'
User: 'thank you goodbye'

[A]: Expensive


[Q]: 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 cheap restaurant in the girton area'
System: 'The Dojo Noodle Bar is an outstanding restaurant, it's in the Girton part of town and it's in the cheap price range.'
User: 'whats the address'
System: 'The Dojo Noodle Bar is located on Miller's Yard.'
User: 'whats the phone number'
System: 'The phone number of the Dojo Noodle Bar is 01223363471.'
User: 'what what type of food do they have'
System: 'The Dojo Noodle Bar serves fusion food.'
User: 'thank you goodbye'

[A]: Cheap


[Q]: 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 i would like to find a an expensive restaurant in the addenbrookes area'
System: 'What type of food would you like? For example, Chinese, Greek, or Indian.'
User: 'unintelligible'
System: 'There is no restaurant in the Addenbrooke's area and serving greek food.'
User: 'anything'
System: 'Would you like an addenbrooke's area, or you don't care?'
User: 'addenbrookes area'
System: 'Let me confirm. You are looking for a venue in the expensive price range.'
User: 'yes'
System: 'Would you like a greek food, or you don't care?'
User: 'i dont care'
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: 'what type of food'
System: 'The Lucky Star serves chinese food.'
User: 'ok whats the address and phone number'
System: 'The Lucky Star is on Unit and its phone number is 01223244277.'
User: 'thank you good bye'

[A]:
Expensive