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

Example Input: Sentence1: Yes, what type of attraction is Cherry Hinton Water Play? Sentence2: Please book it and send me the confirmation code. Sentence3: Again thank you and have a great day. Sentence4: Thanks I'm also looking for a train that leaves on Thursday. Sentence5: Just one seat. Sentence6: OK, what are your departure and arrival stations, and what time do you want to travel? Sentence7: Before i book it, could you confirm the number of seats you need? Sentence8: You're welcome! Is there anything else I can help you with? Sentence9: It is a park. Sentence10: Excellent, I can't wait to visit it! Thank you. Sentence11: I am looking for information about the the Cherry Hinton Water Play Sentence12: excellent, have a great day! Sentence13: I'd like to go to Cambridge via Broxbourne. I'd like to leave on Thursday and arrive no later than 12:00. Sentence14: That is a free park on the east side of town. They are located at Cherry Hinton Hall on Cherry Hinton Road. Their phone number is 01223446100. Sentence15: I have on that arrives at 11:32. Would you like me to book that for you? Sentence16: Perfect thanks for the help thats everything I need! Sentence17: Well I glad i can help enjoy your stay ! Sentence18: Your booking was successful! The reference number is 698RE4W1 . The total fee of 17.89 is payable at the station. Question: Who has spoken the sentence 17? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: No, that's all I needed. Thank you for your help - goodbye! Sentence2: I will take the one that arrives at 15:08. can you make me a booking for 8 people on Wednesday? I will need a reference number. Sentence3: The train should depart from Cambridge on Wednesday and headed for Stansted Airport. It should arrive by 15:15. I would also like you to make a booking for 6 people. Sentence4: I'm looking for a train. Sentence5: I have two trains that would suit you. One arrives at 14:08 and the other at 15:08. Do you have a preference? Sentence6: I have 2,828 trains with different routes, to help narrow it down, where will you be departing/arriving, and what day/time? Sentence7: It was a pleasure to assist you. Please use us again for your future needs. Have a good day. Sentence8: Sure thing! I've booked the train for 8, and your reference number is I62H3VUY . Is there anything else I can do for you today? Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I am looking for Asian Oriental. Sentence2: I am glad we can help. enjoy your stay ! Sentence3: Corpus Christi is my favorite, and well worth the 2-pound admission fee. Their phone number is 01223338000. Sentence4: There are 21. What kind of cuisine would you like? Sentence5: yippee noodle bar meets that criteria! Sentence6: There are 13 colleges in this area. Maybe we can narrow your search. Are there certain colleges or is there certain information I can help you with? Sentence7: Ok, good bye enjoy your day. Sentence8: That is all thank you Sentence9: I have no preference but can I get a phone number to one of them? Sentence10: Ok. I was able to book that table for you. Your reference number is V0XV1NRC . Sentence11: I am also looking for a moderately priced restaurant in the same area as Corpus Christi. Sentence12: i need information about colleges in the centre part of town. Sentence13: Thank you, that is all I need. Sentence14: thanks so much for all of your help! Sentence15: Is there anything else I can assist you with today? Sentence16: Great. Can you please make a reservation for 4? We'd like to arrive around 18:45 on Wednesday. Question: Who has spoken the sentence 8? (A) User (B) System
Example Output:
Answer: (A) User