Teacher: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.
Teacher: Now, understand the problem? Solve this instance: 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: 'unintelligible'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'noise sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'ah international restaurant unintelligible'
System: 'There is no restaurant serving international food that is providing services for free.'
User: 'i want ah international restaurant in the moderate range'
System: 'Giraffe, which serves international food, is an outstanding restaurant. It's in the moderate price range.'
User: 'can you give me the address and the price'
System: 'Giraffe is on Christ's Lane. The price for main courses ranges from 6 pounds 95 to 14 pounds 95 and the price for a cappuccino is 2 pounds 10.'
User: 'what is the postal code'
System: 'Giraffe is in the area with the postcode CB1 1NP.'
User: 'good bye thank you'

Student:
Moderate