Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Great. I hope you have a lovely day. Sentence2: Can you help me find a place to stay in the east? It does not need to include internet. Sentence3: Thank you and yes. I'd like a train from Cambridge to Leicester for Sunday. Sentence4: I booked you a room at a and b guest house for Friday. Your reference is 2WB08P38 . Is there anything else I can help you with? Sentence5: a and b guest house is a nice option Sentence6: I will be arriving Friday and I need it for 2 nights for 1 person. Sentence7: Thank you. That is all for today. Sentence8: The train leaves at 6:21 and the duration is 105 minutes. Sentence9: What time does it leave, and how long is the ride? Sentence10: Sure! How many people for your stay, when would you like to start your stay, and how long would you like to stay for? Sentence11: Okay! What is the price range that you would like? Sentence12: I need to arrive by 20:15, please. Sentence13: nice! does it have free wifi? Sentence14: Yes it certainly does. Sentence15: That's great, can you make a booking for? Sentence16: Price isn't an issue for me, but the hotel should be four stars Sentence17: TR9187 arrives by 08:06. will that be fine with you? Sentence18: There are several trains matching your criteria. Is there a specific time you would like to arrive by? Question: Who has spoken the sentence 10? (A) User (B) System
Output:
Answer: (A) User