Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: can you give me more specifications on the hotel you need? Sentence2: Have a wonderful trip. Sentence3: How does the Allenbell sound? Would you like more information? Sentence4: You're welcome. Can I assist with anything else today? Sentence5: Thank you for your time. Sentence6: We got that booked for you. Your reference number is NBY8UOS8 . Sentence7: No. That is all. Thank you. Sentence8: I am also looking for a hotel. Sentence9: I need a train from Stevenage that would leave after 10:45. Sentence10: I would be travelling on Monday and heading TO Stevenage FROM Cambridge. I'm sorry, I stated that wrong the first time. Sentence11: I have successfully booked a seat on TR6930. The fee is 12.8 GBP and reference number is MWJYC3CD . Can I help with anything else today? Sentence12: I need the hotel for 6 people, 3 nights starting Friday. I also need a reference number Sentence13: THere is a train that leaves at 11:21 and then trains that leave every two hours after that. Does one of those sound best? Sentence14: A guesthouse with free parking would be great. Sentence15: Yes, I would like to take the one at 11:21. Can you give me the train ID, travel time, and price for that train? Sentence16: What day would you be traveling on? And where would you be heading to? Question: Who has spoken the sentence 3? (A) User (B) System
A:
Answer: (B) System