Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: No, I just need the postcode, please. Sentence2: Can you book me a cab to take me to and from the hospital. Sentence3: Is there anything else you need assistance with? Sentence4: At what time? From where are you going? Sentence5: That's no problem. The postcode is CB20QQ. Can I assist you with anything else? Sentence6: I'll have to get back to you on that. Sentence7: Thank you for using our system! Sentence8: I am looking for the Addenbrookes Hospital. I am wondering if they have a trauma and orthopaedics department? Sentence9: No, that will be all. Thank you for your help! Sentence10: Yes, Addenbrookes Hospital has two trauma and orthopaedics departments. Would you like the phone numbers? Question: Who has spoken the sentence 9? (A) User (B) System
A:
Answer: (B) System