Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: The address is 56 saint barnabas road. Sentence2: I need the train to depart from Leicester and arrive in Cambridge by 10:15. I am open on departure time. Sentence3: There are several for Tuesday. Did you have a particular departure and arrival times? Sentence4: I sure hope so. A friend recommended the Alexander Bed and Breakfast. What can you tell me about it? Sentence5: Can you book it for me and get a reference number ? Sentence6: It is a wonderful guesthouse located in the centre of town. It has a 4 star rating and offers both free parking and free internet. Would you like assistance booking? Sentence7: I will also need a train on Tuesday. Sentence8: That sounds like a great place! What's the address? Question: Who has spoken the sentence 5? (A) User (B) System
Output:
Answer: (B) System