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

Sentence1: I want to know if the Worth House is still renting rooms. Sentence2: Yes make the booking or me for 2 and provide the reference number. Sentence3: Ok, I was able to make your reservation. Your total fee is 33.2 GBP. Your Reference number is : POE0NTR1 . Sentence4: yes book for 2 people and 3 nights from thursday Sentence5: Thank you very much. That is all the information I need. Sentence6: The TR1047 leaves Cambridge for London Liverpool Street Wednesday arriving at 07:27. The price is 16.60 lbs. Can I book it for you? Sentence7: Where are you departing from, and what day? Is there a certain time you need to leave or arrive by? Sentence8: i am planning your trip in Cambridge Sentence9: Sure, you really should be more pleasant. I need to get to London Liverpool Street on Wednesday by 20:45 please. Sentence10: Okay great! Have a great trip! Sentence11: Thanks. I also need to find a train to london liverpool street. Sentence12: Are you planning a trip to Cambridge? If so, what type of information are you looking for today? Sentence13: Since this is the cambridge help desk, I assumed that, I really need the date and time to get you booked. Sentence14: I am leaving from Cambridge. Sentence15: Yes they are. Would you like to book a room? Sentence16: Booking was successful. Reference number is : WX6QA7D0 . Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User

Sentence1: Yes, one ticket is fine. Sentence2: Hi I need to get to Cambridge by 5:30 PM. Is there a train for that? Sentence3: Nope, that's it! Thanks! Sentence4: Thank you for using our service. Have all of your needs been met? Sentence5: You're welcome. Good-bye. Sentence6: And you would like to book just one ticket, is that correct? Sentence7: I will be departing from Norwich on Wednesday. Sentence8: There are multiple options that will get you to Cambridge by 5:30pm. Could you please tell me where you will be departing form and what day you are traveling? Sentence9: TR0033 departs Norwich at 15:16 and will arrive in Cambridge at 16:35 (4:35p.m.). Would you like a ticket on that train? Sentence10: The trip is 79 minutes. Sentence11: That's all thank you Sentence12: Great. I have you on that train and your reference number is Y1XTHTJA . Is there anything else I may help you with today? Sentence13: Thank you for the information! Sentence14: That would be fine. How long is the trip? Question: Who has spoken the sentence 10? (A) User (B) System
Answer: (A) User

Sentence1: The closest arrive time for leicester that I have is 09:06. It leaves cambridge at 07:21. How many people will be traveling? Sentence2: I have a number of places so maybe we can narrow it down. Can you tell me what area of town you would like to stay? Sentence3: The Allenbell is a guesthouse. And they are located at 517a Coldham Lane. Is there anything else I can help you with? Sentence4: There will be 2 of us. Can you please provide the reference number after you create the booking? Sentence5: I need a train departing from cambridge and should arrive by 09:15. Sentence6: No, I would just like the address and hotel type, please. Sentence7: you're welcome. its always a pleasure to serve you Sentence8: Thank you. I am also looking for a place to stay. I would like for it to have 4 star rating and free wifi. Sentence9: I'm going to Leicester on Sunday. Sentence10: I have your tickets booked. The reference number is ZJP3WID9 . Sentence11: I think allenbell would be a good choice. Would you like me to book it? Sentence12: There are several trains leaving Cambridge and arriving by 9:15, do you have a destination in mind? Sentence13: No thank you. I appreciate your help today. Goodbye! Sentence14: I would like to stay in the east, there is no need for parking. Question: Who has spoken the sentence 5? (A) User (B) System

Answer: (B) System