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

Sentence1: Is there a time you need to leave by? Sentence2: No, not really. But I will need the train ID and departure time. Sentence3: TR1062 arrives at 9:55. Their departure time is 8:36. There are trains before that one every hour until 5:35. Sentence4: The jesus green outdoor pool in north is really nice. Need a phone number? Sentence5: Can I help with anything else today? Sentence6: Sure their address is between victoria road and the river. Is there anything else I may help you with today? Sentence7: I am also in need of a train that arrives by 10:15 and goes to norwich. Can you please look that up for me. Sentence8: Have a good trip. Goodbye. Sentence9: Hello, could you tell me about the swimming attractions around Cambridge. Something pool based please. Sentence10: Thank you so much for your help. Sentence11: Sure are you departing from Cambridge? Sentence12: Yes and I will be travelling on Saturday Sentence13: Actually, I would like the address, please. Sentence14: no. that is all i needed. thanks. goodbye. Question: Who has spoken the sentence 10? (A) User (B) System
Answer: (A) User