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

[EX Q]: Sentence1: Sure, what will your arrival station be? Sentence2: Thank you! What kinds of restaurants are available? Sentence3: Yes, please. For Friday. 3 people at 16:30. Sentence4: Oh thank you so much. I also need a train from Bishops Stortford, can you help with that? Sentence5: Your welcome, Have a nice day. Sentence6: sure, i have 9 options for you Sentence7: Sure. The Graffiti is a restaurant that serves British food. The phone number is 01223277977. Would you like to make a booking? Sentence8: It is a total time of 38 minutes for the trip. Anything else that I can assist with? Sentence9: The departure time is 09:29. Is there anything else that I can help you with today? Sentence10: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 86G11ZVP . Sentence11: I will be heading into Cambridge. I will need it for Friday arriving by 12:00. Sentence12: Are there any expensive places to dine in the West? Sentence13: No that's ok. I just need the travel time. Sentence14: TR2083 will arrive at 10:07. Want to book? Sentence15: Nothing else today. Thanks so much for your help. Bye. Sentence16: Yeah, can you confirm the time I need to be at the station? Sentence17: I see british, european, and indian available. Sentence18: Can you tell me about one of the restaurants that serves British cuisine? Question: Who has spoken the sentence 8? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: Sounds good. Have a good day. Sentence2: Thank you very much. I will contact them now. Sentence3: Can you give me the contact info for the nearest police station? Sentence4: Sure! The Parkside Police Station is located at Parkside, Cambridge and can be reached at 01223358966. Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: The Finches Bed and Breakfast fits those requirements. Would you like me to book that for you? Sentence2: I need a guesthouse, with free parking. Sentence3: Actually, I don't care what part of town it is in. I just need 4 stars. Does The Finches offer that? Sentence4: I would like it in the cheap price range in the west. Sentence5: Goodbye! Have a great day! Sentence6: Yes please, just for 1 person for 2 nights starting on Monday. Sentence7: I'm sorry, it wasn't available. I did book a room at the Alexander Bed and Breakfast. It is a cheap 4 star with free parking. Reference number B4IRJDNN . Sentence8: Thank you for the reference number B4IRJDNN. Goodbye. Sentence9: There are a few options meeting your requirements. What area should the guest house be in? Sentence10: Yes they do have four stars. Free internet and parking, may I book that for you? Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]:
Answer: (A) User