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

[Q]: Sentence1: looking for a train going to Cambridge. Sentence2: How about TR3350 that leaves at 05:17? Sentence3: you can book it. get me the reference number too Sentence4: I am leaving on Sunday and need to arrive by 13:00 Sentence5: Thank you for using our services. Sentence6: Thank you that is all I needed. Sentence7: W8YHJKSV is the reference number Sentence8: What day and time are you wanting to travel? Question: Who has spoken the sentence 2? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: Thank you. Could you please get me the phone number? Sentence2: Yes, I was wondering what the location is of Addenbrookes Hospital. Sentence3: no, that's all thanks Sentence4: That hospital is located on Hills Rd, Cambridge. Sentence5: Happy to help. Feel free to call back if any additional questions come up. Have a good day. Sentence6: The main hospital phone number is 01223245151. Were you looking for a specific department? Question: Who has spoken the sentence 4? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: Actually, I need a train leaving from leicester after 5:30. Sentence2: The train fare from Leicester to Cambridge on Sunday is 30.24 pounds. Do you need more information? Sentence3: Yes their postcode is cb21dp. Where will you be leaving from and at what time? Sentence4: The closest I can get you to that time frame is a train that leaves from Ely at 13:35. Sentence5: Yes, what is the total travel time? Sentence6: I am looking for a restaurant in the centre of town Sentence7: How about train TR9382 leaving at 5:35 and arriving at 5:52? Sentence8: Okay the TR9823 leaves at 15:35. Sentence9: I don't have a preference for food but I would like it to be in the expensive price range. Sentence10: How about Little Seoul, a Korean restaurant that's located at 108 Regent Street City Centre. Do you need any more information? Or would you like to make a reservation? Sentence11: i misspoke i need it to leave after 15:30 Sentence12: The travel time is 105 minutes. Sentence13: You're welcome, have a great day. Sentence14: Ok, thank you, that is all the info I need right now. Sentence15: What type of food and price range are you interested in? Sentence16: How much is the train fare? Sentence17: Sounds good, can you please send the postcode. Also I need a train leaving on Sunday to Cambridge. Sentence18: I will be leaving from ely at 5:15. Question: Who has spoken the sentence 8? (A) User (B) System
[A]:
Answer: (A) User