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, how about a museum in the centre? Sentence2: What is their address? Sentence3: I want a cheap restaurant that serves polynesian food. Sentence4: How about italian? Sentence5: I need it to arrive at the restaurant by the booked time. Sentence6: You are booked and your reservation number is Q7YR4YLN Sentence7: Looking now La Raza has a few openings, how many people? Do you have a date and time in mind? Sentence8: The castle galleries is a free museum in that area. Sentence9: I am afraid I have none matching your request. Would you like to try another type of food or area? Sentence10: Hi, I'm looking for entertainment attractions that are available in the centre. Sentence11: Can you help me get a taxi? Sentence12: There are no entertainment attraction located in the centre. Would you like me to check different areas? Sentence13: Of course. I need the time of travel, departure location and the destination. Sentence14: great, i have 69 options for you in that area! Sentence15: The la raza serves spanish food. Its cheap and in the centre. Would you like me to book you a table there? Sentence16: Your taxi is a blue skoda under the contact number 07244814493. Is there anything else? Sentence17: Can you try spanish food instead? Sentence18: You're welcome, glad I could help. Sentence19: Yes! Please do. Sentence20: I'd like it for Saturday at 17:45, just one person. Sentence21: That is all thanks. Sentence22: I am also looking for a restaurant in the same area as the attraction. Sentence23: There's nothing that serves spanish food in the cheap price range in the centre of town? Sentence24: unit su43, grande arcade, saint andrews street anything else i can help you with? Question: Who has spoken the sentence 9? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Okay, the TR8944 leaves at 15:39 and arrives by 17:07. Would you like me to book tickets for you? Sentence2: There are 10 trains leaving fro Liverpool Street on Thursday. Did you have a departure time in mind? Sentence3: Okay I have booked you and your reference number is WLUOQKEV . Sentence4: rosa's bed and breakfast is in the cheap price range Sentence5: I'm looking for a train departing from london liverpool street leaving on thursday. Sentence6: Do you need a taxi? Sentence7: Goodbye, and thanks again. Sentence8: Yes, I don't want to leave for Cambridge until 15:00 at the earliest. Sentence9: Sure thing. Thanks for letting us help you today! Sentence10: Thank you. I also need a hotel in the south. Sentence11: then thanks for inquiring with us. Sentence12: I don't need a taxi, thanks for asking Sentence13: No price range but I do want a 4 start. Sentence14: Yes, for 6 people. Sentence15: What price range are you interested in? Sentence16: That sounds great. I'll need a reservation for 6 people for 4 nights on Thursday. Sentence17: I've gone ahead and booked that for you. Your Reference number is : EUZ34KY9 . Is there anything else I can assist you with today? Sentence18: No, that takes care of everything I need. Thanks! Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I was wondering the price range of the riverside brasserie. Sentence2: I have 4 modern european restaurants in the center of town. I recommend the Riverside Brasserie. Sentence3: What is the postcode of that resturant? Sentence4: You're welcome. Have a great trip! Sentence5: The phone number for Riverside Brasserie is 01223259988. Can I help you with anything else? Sentence6: It looks like there are none. Is there another area or type of food you'd like to look for? Sentence7: TR7850 leaves at 11:17, can book some seats for you? Also, the postcode for Riverside Brasserie is cb21rt. I had forgotten to give you that information. Sentence8: The Riverside Brasserie is moderately priced. Sentence9: Booking was successful, the total fee is 118 GBP payable at the station . Reference number is : 1JO707L5 . Will you need anything else? Sentence10: Hi, are there any modern global restaurants in the centre? Sentence11: Thanks. Could you check on a train for me from london kings cross? Sentence12: Sure, when would you like to leave by? Sentence13: I would like to leave after 11:15 on a Tuesday. Sentence14: I would like to look for one that serves modern european food please. Sentence15: Yes I'd like to book that train for 5 and I'd like the reference number as well please. Sentence16: I think that will be all for today. Thank you. Question: Who has spoken the sentence 8? (A) User (B) System
Example Output:
Answer: (A) User