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 the ID for this train and the overall travel time? Sentence2: Where will you be leaving from? Sentence3: the cambridge train leaves at 9:11 on sunday. Sentence4: Please let us know if we can assist you in the future. Have a great day! Sentence5: What is your destination? Sentence6: The ID is TR6088 and the total travel time is 47 minutes. Can I be of further assistance today? Sentence7: That is all I will need. Good bye. Sentence8: Yes, that would be fine. What's the train ID and travel time for that one? Sentence9: I would be leaving from Cambridge. Sentence10: im going to kings lynn Sentence11: There is a train leaving at 9:11 would that work for you? Sentence12: Hello. Are there any trains leaving after 8:00 on Saturday? Question: Who has spoken the sentence 7? (A) User (B) System
A:
Answer: (B) System