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: 'a cheap restaurant in the city center area'
System: 'Are you looking for somewhere near a particular venue? For example, Gonville and Caius College, Great Saint Mary's Church, or Little Saint Mary's.'
User: 'no'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Girton, or New Chesterton area.'
User: 'in the city center area'
System: 'What part of town do you have in mind? For example, something in the Fen Ditton, New Chesterton, or riverside area.'
User: 'city center area'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Fastfood, or Mediterranean.'
User: 'i dont care'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'yes'
System: 'Are you looking for a pub or a restaurant?'
User: 'cheap restaurant'
System: 'La Raza, which is in the cheap price range, is a great restaurant.'
User: 'whats the address'
System: 'La Raza is on 4-6, The Basement, Rose Crescent.'
User: 'thank you good bye'
System: 'La Raza is a great restaurant.'
User: 'thank you good bye'


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: 'noise sil'
System: 'What kind of venue are you looking for? For example, a restaurant.'
User: 'im looking for a northern european restuarant in the cheap price range'
System: 'Polonia, which serves northern european food, is a great restaurant. It's in the cheap price range.'
User: 'what is the phone number'
System: 'The phone number of Polonia is 01223902138. The price for main courses ranges from 1 pound 50 to 7 pounds 50.'
User: 'thank you good bye'


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: 'i need a restaurant in fenditton'
System: 'What type of food would you like? For example, Italian, Spanish, or Turkish.'
User: 'italian'
System: 'There is no restaurant in the Fen Ditton area and serving italian food.'
User: 'turkish'
System: 'There is no restaurant in the Fen Ditton area and serving turkish food.'
User: 'chinese'
System: 'The J Restaurant, which serves chinese food, is a great restaurant.'
User: 'address'
System: 'The J Restaurant is located on 86, Regent Street. The price for main courses ranges from 8 pounds to 12 pounds.'
User: 'thank you goodbye'


Ex Output:

Don't Care


