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.

Ex Input:
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 would like an expensive restaurant in the fen ditton area'
System: 'Are you looking for somewhere near a particular venue? For example, the Broughton House, Hughes Hall, or Jesus College.'
User: 'no'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Girton, or riverside area.'
User: 'the fen ditton area'
System: 'The Riverside Restaurant is an outstanding restaurant. It's in the Fen Ditton part of town. It's in the expensive price range.'
User: 'may i have the address and phone number'
System: 'The Riverside Restaurant is located on Cambridge Regional College, Newmarket Road and its phone number is 01223418997.'
User: 'what is the price'
System: 'The Riverside Restaurant is a great venue. The price for main courses ranges from 21 pounds 95 to 25 pounds 95.'
User: 'thank you goodbye'


Ex Output:
Expensive


Ex Input:
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 would like a cheap pub'
System: 'Are you looking for a venue with a television?'
User: 'yes i am'
System: 'Are you looking for a venue with an internet connection?'
User: 'it doesnt matter'
System: 'The Baron of Beef, which is in the cheap price range, is an outstanding pub.'
User: 'is it in the riverside area'
System: 'I am sorry but there is no information on The Baron of Beef's area.'
User: 'i would like a pub in the riverside area please'
System: 'The Avery is a great pub. It's in the riverside part of town. It's in the cheap price range.'
User: 'and it has a television'
System: 'The phone number of The Avery is 01223323405.'
User: 'does it have a tv'
System: 'The Avery has a television.'
User: 'what is the address'
System: 'The Avery is on 69-73 Regent Street.'
User: 'thank you goodbye'


Ex Output:
Cheap


Ex Input:
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: 'sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'spanish restaurant dont care about the price'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'spanish restaurant'
System: 'What type of food would you like? For example, Drinks and snacks only, Thai, or Traditional.'
User: 'spanish restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Hughes Hall, Kettle's Yard, or Saint John's College.'
User: 'spanish'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'dont dont care'
System: 'La Raza, which serves spanish food, is a great restaurant.'
User: 'what is the address and price of the venue'
System: 'La Raza is located on 4-6, The Basement, Rose Crescent. The price for main courses ranges from 1 pound 95 to 13 pounds 95 and the entrance for adults is 4 pounds.'
User: 'thank you and have a good day'


Ex Output:

Don't Care