You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
--------
Question: Sentence1: Perfect, I have train TR1472 that meets your criteria, would you like me to book a ticket for you? Sentence2: I can help you with that. Where are you traveling from? Sentence3: Book it for 3 people. Sentence4: Sure. Your train is booked. The fee will be 30.29 GBP and your reference number is 7FGDRE1Q . Sentence5: I need to find a place to stay as well. Can you help? Sentence6: I need to find a train into Cambridge that will arrive by 09:15. Sentence7: I will be leaving the Stansted Airport on Thursday. Sentence8: I need to know what you're looking for first. Question: Who has spoken the sentence 2? (A) User (B) System

Answer: Answer: (A) User

Question: Sentence1: They are all moderately priced, but Avalon has free internet and four stars. Would that suit you? Sentence2: Yes, free wifi. No free parking though. Sentence3: That sounds good. Do they have wifi? Sentence4: Your table has been booked. The reference number is 3FOO64PM . Sentence5: Thank you I am also looking for a restaurant in the same area as the hotel serving expensive chinese food. Sentence6: please contact us again in the future. goodbye. Sentence7: There is Hakka located at Milton Road Chesterton would you like me to reserve it for you? Sentence8: I have three guesthouses to choose from. Do you mind they are in the north? Sentence9: I'm looking for a guesthouse to stay in and I don't need a free parking. Sentence10: 01223315702 and cb12dp. Sentence11: Perfect thats all I needed! Sentence12: This one is in the north a and b guest house Sentence13: Are there any moderately priced 3 star guesthouses in the west available? If not in the west, what about the north? Sentence14: Yes please. I need it for 8 people on Wednesday at 19:15. Sentence15: That's fine. Could I get their postcode and phone number? Sentence16: No that is okay, can you book the cheapest one for me please? Question: Who has spoken the sentence 2? (A) User (B) System

Answer: Answer: (A) User

Question: Sentence1: The phone number for Kymmoy is 01223 311911. Would you like any additional information? Sentence2: 01223 356555 is the number. Sentence3: THANK YOU GOO BYE Sentence4: the address for saigon city is 169 High Street Chesterton Chesterton Sentence5: Thank you. Can you also tell me the address for Saigon City, please? Sentence6: I would like an expensive restaurant that serves afghan food Sentence7: Could you tell me the phone number of Saigon City? Sentence8: Which part of town it is in ? Sentence9: Kymmoy is in centre, and Saigon City is in north. Would you like more information on one of those? Sentence10: It does not appear there are any restaurants serving afghan food Sentence11: Yes, I would like the number for Saigon City. Sentence12: How about asian oriental food? Sentence13: it is located in the north part of town Sentence14: thank you good bye Question: Who has spoken the sentence 8? (A) User (B) System

Answer:
Answer: (A) User