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

Example Input: Sentence1: I'm sorry the full address isn't listed would you like there postcode and phone number? Sentence2: They are on Wheeler street and phone is 01223357851 Sentence3: No but I also need a hotel called university arms hotel. Sentence4: It is a theatre located in the centre on wheeler street. Sentence5: Can you provide their full address please? Sentence6: I'd like to visit an attraction called the Cambridge Corn Exchange. What can you tell me about it? Sentence7: I was able to find university arms hotel located at regent street. Would you like me to book a room for you? Sentence8: Before we do that, what type of attraction is the Cambridge Corn Exchange? I don't know too much about it. Question: Who has spoken the sentence 6? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Can I get the travel time and price on the 5:52 one? Sentence2: Tenpin is an entertainment attraction in the south part of town their phone number is 08715501010, and address is cambridge leisure park, clifton way Sentence3: I will need more information to narrow down the results. What day would you like to depart on, and what area is your departure from? Sentence4: Ok, and I also want to find out about an attraction called Tenpin please. Sentence5: TR5348 leaves Ely at 5:35 and arrives in Cambridge by 5:52. The price for a ticket is 4.40 pounds and the ride's duration is 17 minutes. Sentence6: Great, thank you. Sentence7: Departing fro Ely on Wednesday and arriving by 09:30. Sentence8: I'd like train information for cambridge. Sentence9: Thank you so much for the information Sentence10: There are two trains. One arriving at 5:52 and one at 7:52. Would you like me to book one of these for you? Question: Who has spoken the sentence 5? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Booking was successful, the total fee is 70.7 GBP payable at the station Reference number is : DMXYQFPZ . Is there anything else you need today? Sentence2: I want a train leaving on thursday. Sentence3: make a booking for 7 people and could I get the reference number Sentence4: Where are you departing from and what is your destination? Sentence5: I hope you enjoy your time in Cambridge, have a great day! Sentence6: No that will be all thank you! Sentence7: I have the TR6437 leaving at 07:24 and arriving at 07:52. Would you like me to book that for you? Sentence8: should depart from stansted airport and arrive by 08:00 at cambridge Question: Who has spoken the sentence 3? (A) User (B) System
Example Output:
Answer: (B) System