You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Example Input: Sentence1: What is the address? Sentence2: Indian, Italian and British restaurants are available in the west part of town for a moderate price. Would you like more information on any or all of these? Sentence3: No, the west part of town Sentence4: I don't have a preference as long as it's moderately priced and in the west part of town. Sentence5: Meghna is an Indian restaurant, it is in the moderate price range, and it is in the west part of town. The address is 205 Victoria Road Chesterton. Sentence6: May I suggest curry prince, a moderately priced indian restaurant in the east? Sentence7: I would like a moderately priced restaurant in the east part of town Sentence8: Did you want the address for an Indian, Italian, or British restaurant? Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: i am looking for information in Cambridge. Sentence2: I can certainly help you with that! What do you want to know? Sentence3: The hotel should have a star of 4 and should include free parking. Sentence4: I'd like to stay at a guesthouse that offers free wifi. Sentence5: The Alexander bed and breakfast is a great place. Do you need a reservation? Sentence6: Acorn Guest House would be perfect for your needs. Sentence7: yes, please. 6 people for 3 nights starting on thursday. Sentence8: Do you have a price range or area preference? Because if not, how about a and b guest house located in the east and moderately priced. Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Yes, please along with the phone number and the post code. Thanks. Sentence2: It's located at the Grafton Hotel restaurant. The phone number is 01223 241387, and the postal code is C.B 5, 8 P.A. Sentence3: There is one british restaurant in the east part of town called grafton hotel restaurant. Would you like the phone number? Sentence4: I would like a restaurant in the east part of town that serves british food Sentence5: Wonderful, thank you. Sentence6: No problem, have a good time. Good bye. Question: Who has spoken the sentence 4? (A) User (B) System
Example Output:
Answer: (A) User