You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: Where are you departing from and what day are you traveling? Sentence2: Ok, thank you. Have a good day. Sentence3: Thank you for contacting us and have a nice day. Sentence4: Im traveling to Cambridge from london liverpool street arriving by 11:45 the day of my hotel booking. Sentence5: Please make a booking for eight people staying for 4 nights from Saturday. Sentence6: Home from Home is a moderately priced, 4 star guesthouse located in the north. Would you like me to check availability for you? Sentence7: Ok! Is there anything else I can do for you? Sentence8: That is all for now. Thank you. Sentence9: I was able to book your room for 8 people for 4 nights starting on Saturday. The reference number is : SV1VVPV4 . Is there anything else you need? Sentence10: No, thank you. I don't need a ticket at this time. Sentence11: That will do it. Thank you for your assistance! Have a good day! Sentence12: I am looking for a hotel by the name of home from home. Sentence13: Train #TR0357 leaves at 9:39 and arrives in Cambridge by 11:07. Would you like to book a ticket? Sentence14: Actually, I also need a train to go to cambridge and should arrive by 11:45. Question: Who has spoken the sentence 12? (A) User (B) System
A:
Answer: (A) User