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

Example Input: Sentence1: Ok, that would be great. Can I get the reference number please? Sentence2: Sure, and make me a booking for 7 people. Sentence3: I'll be departing from Cambridge on Wednesday. Sentence4: Yes I need a train going to birmingham new street leaving after 18:15. Sentence5: I have Hughes Hall, 01223334898, with free entrance. The broughton house gallery at 01223314960, also free. I don't seem to have any churches. Can I help you further? Sentence6: there are some great museums, colleges and churches for you to visit. Sentence7: Please recommend some worthwhile places to visit in the centre. Sentence8: Have a wonderful visit. Thank you for using Cambridge TownInfo Centre. Goodbye. Sentence9: I will go ahead and book that for you. Sentence10: Great, I would like to get some phone numbers for those places in the centre. Sentence11: Where will you be departing from, and on what day? Sentence12: Thank you. That's all I need for today. You've been a great help. Sentence13: There are five trains leaving on Weds. Do you want me to pick one to book? Sentence14: TR9236 leaves cambridge on wednesday on 19:01 and arrives at birmingham new street at 21:44. I have booked 7 tickets. Your Reference number is : 2BGY3ZRW . Question: Who has spoken the sentence 6? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: You're welcome, enjoy your day. Sentence2: How about Downing College? It has free admission and is located on Regent Street/ Sentence3: I'd like to visit a college in the center of town. Could you help me find something interesting? Sentence4: That sounds great! Can I have their phone number and postcode, please? Sentence5: No, that was all I needed to know. Thank you, you've been very helpful. Sentence6: Downing College's phone is 01223334860 and their postcode is cb21dq. Can I help you with anything else today? Question: Who has spoken the sentence 4? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Thanks. The train and attraction are all I need today. I appreciate your help. Goodbye. Sentence2: I am going to Cambridge and I want to travel home by train. Sentence3: I am also interested in places to go in town. I would like to find an entertainment attraction in the east of town. Do you have any suggestions? Sentence4: I would like to leave on Wednesday after 16:00 and go to Norwich. Sentence5: Yes please. Thank you so much! Sentence6: The first train leaving after 16:00 is TR6838. It leaves at 16:36 and will arrive at 17:55. Will that fit your needs? Sentence7: Okay your booking was successful and your reservation number is SAAOOKI0 . Sentence8: That sounds perfect, can you let me know the price per ticket on that? Sentence9: Can I get the postcode for the funky fun house? Sentence10: What day would you like to travel? Sentence11: I've got two for you. The Cherry Hinton Hall and Grounds or the Funky Fun House. Would you like more information on one or both? Sentence12: You're welcome! Have a great day! Sentence13: the postcode is cb58hy. anything else? Sentence14: It is 17.60 pounds. Would you like me to book it for you? Question: Who has spoken the sentence 6? (A) User (B) System
Example Output:
Answer: (A) User