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

Example Input: Sentence1: 07426688661 is the contact number, I have you in a grey Toyota. Sentence2: Great. Can you tell me where you will be traveling to and from? Sentence3: I need to get there by 11:45. Sentence4: That's perfect, thanks! Sentence5: I need to book a taxi please. Sentence6: You are welcome. Thank you for calling us. Goodbye. Sentence7: Can I help you with anything else? Sentence8: No, that's everything. Goodbye. Sentence9: I want to go from wandlebury country park to huntingdon marriott hotel Sentence10: Okay, I will need some more information from you. What time would you like to leave? Question: Who has spoken the sentence 8? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: I'd like to dine in the center of town, please. Sentence2: Could you give me the address and phone number for the Slug and Lettuce please. Sentence3: I'm looking for a place to dine that serves gastropub food. I want it to be expensive. Sentence4: You're quite welcome! Thanks for contacting the Cambridge TownInfo Centre and have a great day! Sentence5: The slug and lettuce is located at 34 - 35 Green Street, postcode cb23ju. I'm sorry our system does not list their phone number. Is there anything else? Sentence6: I have two in the centre, the Backstreet bistro and The Slug and Lettuce. Would you like for me to make you a reservation? Sentence7: I wish you could provide their phone number. But other than that you've given me everything I need to know. Thank you goodbye. Sentence8: We have 3 options in Cambridge for expensive gastropub food. Would you prefer a place in the centre or in the east? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Yes, I'd like to arrive by 15:15. I'm leaving from Cambridge as well. Sentence2: Yes, I need the train ID, please. Sentence3: I only need one ticket, please. Sentence4: Ok great and what day would you like the booking to be made for? Sentence5: Yes I was able to book that for you and your reference number is YTANICP1 . Sentence6: I can help with that. I have 10 different trains that can get you there. Did you have a time you need to leave or arrive by? Sentence7: Glad to be of help. Good day to you too. Sentence8: Need a train leaving monday to bishops stortford. Sentence9: Yes I am also looking for somewhere cheap to eat in the centre that serves italian food please. Sentence10: The same day as the train which is Monday. Sentence11: Sure, what time are you looking for a reservation at? Sentence12: Pizza Hut City Centre sounds fine. Could you book a table for 7 people there for me? Sentence13: The total will be 10.10 GBP which is payable at the station. Your reference number is 1EJQJWS2 . Is there any other help you need? Sentence14: There is one leaves at 13:29, arriving at 14:07. Would you like a reservation on that? Sentence15: The ID is TR4861. How many people would you like tickets for? Sentence16: There are three possibilities. Pizza hut city centre, ask or zizzi cambridge. Would one of those work? Sentence17: Awesome! That will be it for tonight. Have a good day. Bye. Sentence18: It'll be for 10:45. Question: Who has spoken the sentence 17? (A) User (B) System
Example Output:
Answer: (B) System