Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: The address is Hills Rd, Cambridge Postcode : CB20QQ Sentence2: I would like to arrive by 11:45. I will need to buy 5 tickets once we find a train. Sentence3: Going to Cambridge. Sentence4: I am actually looking for a train on sunday from peterborough. Sentence5: I have train TR7721 arriving at 7:38 would you like that one? Sentence6: At what time do you want to travel? Sentence7: What is your destination? Sentence8: Can you give me the address to the hospital in Cambridge? Sentence9: Yes, five tickets, please. What is the reference number? Sentence10: Your reference number is CIGYXAW9 . Do you need anything else? Question: Who has spoken the sentence 3? (A) User (B) System
A:
Answer: (B) System