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

Example Input: Sentence1: The Hotpot is an expensive Chinese restaurant in that area. Sentence2: Great can I get their phone number as well please? Sentence3: You're quite welcome! Thanks for contacting the Cambridge TownInfo Centre and have a great day! Sentence4: Would you like to eat Asian Oriental, Chinese, European, or French? Sentence5: No thank you. Have a great day! Sentence6: I am looking for an expensive place to dine in the north. Sentence7: The phone number for the hotpot is 01223366552, would you like me to book you a table? Sentence8: I think Chinese may have caught my attention. Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I'd like to find an expensive restaurant in the north part of town. Sentence2: The restaurant should serve asian oriental food. Sentence3: You are welcome. Sentence4: Yes, I would like to be booked for a table for 8 on 19:45 on a Saturday, and could I also get the reference number? Sentence5: Your reservation has been made and the reference number is 3P2ALRY0 . Sentence6: I have one restaurant called saigon city on 169 high street chesterton chesterton. Would you like me to book for you? Sentence7: There are many restaurants in the North that match your description, what type of cuisine are you interested in? Sentence8: Thank you for your help. Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: That sounds great. Thank you so much for your help. Sentence2: i need to leave after 12:45 on Monday Sentence3: I'd be happy to help with your request, first I will need to know what day/time you'd like the reservation for. Sentence4: That will be all. Thank you for your help. Goodbye. Sentence5: How about TR6110 that leaves at 13:00 Sentence6: You're welcome, have a great day! Sentence7: Reference number is : VQFAZJU3 . What else may I help with? Sentence8: It is a chinese restaurant in the north part of town located at 66 Chesterton Road Chesterton Sentence9: Hello, I am looking for a train to leave on Monday after 12:45. Sentence10: Thanks! For 17:45 on Monday, please. Sentence11: Yes, can you tell me about the Hotpot Restaurant? Sentence12: TR6110 has a total travel time of 51 minutes. Can I help you with anything else today? Sentence13: I don't need anything to be booked but I do need the train ID and the travel time. Sentence14: Can we narrow it down by choosing where you want to depart and arrive? Sentence15: How many people should I book for? Sentence16: Can you please book me a table at the restaurant for 2 people? Question: Who has spoken the sentence 6? (A) User (B) System
Example Output:
Answer: (A) User