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

[EX Q]: Sentence1: How many tickets will you be needing today? Sentence2: That is all, thanks. Sentence3: I booked 4 tickets on train TR4187, your reference number is LXZWA3Q8 . A total of 66.4 GBP is payable at the station, can I help you with anything else? Sentence4: All right, the TR4187 leaves at 13:59 and arrives at 15:27. Would you like me to book that for you? Sentence5: I have some moderate priced hotels in the north and center. Do you have a location preference? Sentence6: Booking was successful. Reference number is : P39PYOK0 . Can I help you with anything else? Sentence7: Where will you be traveling from, and what day would you like to travel? Sentence8: Yes, please book it for me. Sentence9: I would like a moderate price hotel in Cambridge. Sentence10: I also need info on a train. It should arrive in london liverpool street by 16:30. Sentence11: I need 4 tickets, and the price and train ID Sentence12: I will be departing Cambridge on Friday. Sentence13: Either one is fine. I need to book it for 5 nights on Wednesday. There are 4 people. Sentence14: There are two 2 star hotels in the north part of town. Ashley Hotel and Lovell Lodge. Both include free internet and parking. Do you have a preference? Sentence15: I will work on that and be back with you in a moment. Sentence16: Sure. What is your price range and what side of town will you be interested in? Sentence17: Hi, I am planning a trip and could use some advice on a place to stay. Sentence18: I'm not concerned about the area but it doesn't need to include internet. Sentence19: You're welcome, let me know if I can assist with anything else. Sentence20: Let me know when your break is over. I'll need a reference number please. Question: Who has spoken the sentence 9? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: royal spice serves indian food in the cheap price range and is in the North part of town. Sentence2: royal spice's address is Victoria Avenue Chesterton Sentence3: What kind of food would like? Sentence4: Da vinci pizzeria serves Italian food in the cheap price range and is in the North part of town. Sentence5: Are there any other options? Sentence6: That sounds great. May I have their address please? Sentence7: I am looking for a cheap restaurant that is in the north part of town. Sentence8: enjoy! Sentence9: Thank you very much , bye bye Sentence10: Any Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Okay what day will you be traveling? Sentence2: My favorite thing to do is look at the architecture at Holy Trinity Church. It's located on Market Street and it's free to get in. Does this work? Sentence3: Thank you. Let me know if I can help again. Sentence4: Okay can I get the reference number? Sentence5: Thank you. That is all I am inquiring about today. Sentence6: Perfect! I would like to book it for 4 people. Sentence7: No, not really. What's your favorite thing to do in the centre of town? Sentence8: I was able to book it, reference number is XYAQ9XA4 . Sentence9: Yes please book it for 4 people and give me the reference number. Sentence10: Would you like me to book it now? Sentence11: I found 44 different attractions near that location, is there something specific you're looking for? Sentence12: Can you help me find a place to go in the centre? Sentence13: I have a train to Kings Lynn that arrives at 12:58. Sentence14: I will be leaving from Cambridge on Sunday. Sentence15: Yes And I would like to find a train that arrives by 13:00 going to Kings Lynn. Sentence16: I will work on getting that booked and be right back with you. Question: Who has spoken the sentence 6? (A) User (B) System
[EX A]:
Answer: (A) User