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 just looking for something fun to do in the centre of town. Do you have any recommendations? Sentence2: I am checking on the train schedule from Peterborough to Cambridge. Sentence3: I will book it myself. Sentence4: What day do you want to depart? Sentence5: i want to depart on thursday. Sentence6: Can I get the phone number please? Sentence7: I also need an attraction. Sentence8: thank you and enjoy your stay. Sentence9: No thank you. That is all for today. Goodbye Sentence10: OK - is there anything else I can help you with today? Sentence11: TR418 leaves at 10:19. Whould you like me to book it? Sentence12: Sure many trains use that route. It would be helpful if you could narrow down a specific travel time. Sentence13: I want to leave after 10:00. Sentence14: Sure, their number is 08712240240. Is there anything else I can help with? Sentence15: Ok, I can help you with that. What type of attraction are you looking for? Sentence16: I'd recommend Vue Cinema. Would you like more information? Question: Who has spoken the sentence 13? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Where did you want to get on the train? Sentence2: Alpha-Milton Guest House is 3 stars with no internet or parking. Would you like to book a room there? Sentence3: Okay, there are lots of choices. What time of day would you like to travel? Sentence4: I'd like to book it for 4 people and 2 nights starting Monday. I need the reference number as well. Sentence5: Yes, I am looking for a place to stay. I would prefer to stay in the North at a 3 Star location. Sentence6: No, I don't need assistance with the booking. Can you tell me the cost of the ticket though? Sentence7: I show 2 option, both in the moderate price range. Do you need parking or internet? Sentence8: TR7940 will get you there by 20:38, would you like me to book it you some tickets? Sentence9: Yes, I need a train to get me to Cambridge on Monday. Sentence10: The cost per ticket is 16.50 pounds. Can I assist you with anything more? Sentence11: Neither of those matter, but I would like it to be a guesthouse. Do one of those match? Sentence12: No, that's everything. Thank you. Sentence13: You're welcome! I hope that you enjoy your stay in Cambridge. Have a nice day. Bye. Sentence14: Fantastic, your reference number is T2AUGQ7S . Is there anything else you need today? Sentence15: I need to get there by 20:45. Sentence16: I will be departing from peterborough. Question: Who has spoken the sentence 8? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Booking was successful. Reference number is : KZHALMQD . anything else? Sentence2: Yes, please. Can we get a table on the same day we arrive at the hotel? We'd like to eat at 20:00, if possible. Sentence3: I need a hotel in north Cambridge. Sentence4: Is the parking free? Sentence5: Yes, go ahead. I need it for Tuesday for 3 people and for 3 nights. Could you send me a reference number too? Sentence6: Perfect, thank you. That's all I needed. Sentence7: Your table has been booked for 3 people at 20:00 on Tuesday at Graffiti. Your reference number is BA1VAKNA . Sentence8: There are many good British restaurants in town. One of my favorites is Graffiti on the west side of town. Would you like me to make you reservations? Sentence9: Yes they have free parking. Sentence10: Can you also find an expensive british restaurant for me? Sentence11: There are 2 hotels in the north area of town, both have 2 star ratings and offer free wifi and parking. Can I book one for you? Sentence12: I told you Tuesday can I speak to a manager you are not paying attention. Sentence13: Excellent! Enjoy your visit. Sentence14: What day will you be staying there? Question: Who has spoken the sentence 6? (A) User (B) System
Example Output:
Answer: (A) User