Definition: 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.
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: 'moderately priced restaurant'
System: 'What type of food would you like? For example, East asian, Fusion, or Mediterranean.'
User: 'mediterranean'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Newnham, or Romsey area.'
User: 'unintelligible'
System: 'What part of town do you have in mind? For example, Fen Ditton, or Newnham.'
User: 'adden'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Arbury, or Cherry Hinton area.'
User: 'addenbrookes area'
System: 'Nando's Restaurant, Cambridge Leisure Park is an outstanding restaurant and it's in the Addenbrooke's part of town. It serves mediterranean food.'
User: 'addenbrookes area'
System: 'Nando's Restaurant, Cambridge Leisure Park, which is in the Addenbrooke's part of town, is a great restaurant. It serves mediterranean food.'
User: 'yes'
System: 'Nando's Restaurant, Cambridge Leisure Park is a great restaurant and it's in the Addenbrooke's part of town. It serves mediterranean food.'
User: 'whats the address'
System: 'Nando's Restaurant, Cambridge Leisure Park is on Unit G5, Cambridge Leisure Park, Clifton Way. The price for main courses ranges from 3 pounds 50 to 12 pounds 45.'
User: 'phone number'
System: 'The phone number of Nando's Restaurant, Cambridge Leisure Park is 01223246568.'
User: 'postcode'
System: 'Nando's Restaurant, Cambridge Leisure Park is in the area with the postcode CB1 7DY.'
User: 'thank you good bye'

Output:
Moderate