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

Sentence1: I will be departing from Stevenage and going into Cambridge on Sunday. Sentence2: Great, thanks so much! What is their address and postcode? Sentence3: Okay, their phone number is 01223327978. Sentence4: No, thank you, but could you tell me the arrival time? Sentence5: I want to depart anytime after 15:30, so the soonest available train after that would be nice. Sentence6: Thank you for using the Cambridge TownInfo centre. Goodbye. Sentence7: I have TR1577 leaving at 15:54, would you like me to book a ticket? Sentence8: The address is 41 warkworth street and the postcode is cb11eg. Is there anything else I ca help you with? Sentence9: Thanks! I'm also looking to stay in a 0-star guesthouse in the center of town. Oh, and I need free parking. Sentence10: There are multiple trains on sunday. Do you have a time you want to depart or arrive by? Sentence11: Hi, I'm planning a trip and am finding the trains to be a bit confusing. Can you help me find one? Sentence12: I have the City Centre North B&B in the north and El Shaddai in the centre. Which would you prefer? Sentence13: Yes, the train arrives in Cambridge at 16:43. Sentence14: Yes I would be happy to help you. Where will you be departing from and what is your destination? Sentence15: El Shaddai, please. I need their phone number, address, and postcode. Sentence16: Great. That's all I need. Thank you. Question: Who has spoken the sentence 8? (A) User (B) System
Answer: (A) User