Teacher:You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Teacher: Now, understand the problem? Solve this instance: Sentence1: TR5767 leaves at 05:00 should i book it for you? Sentence2: Yes. I am also looking for a place to stay in the south of town. Are there any guesthouses there? Sentence3: Yes, I need some train information. Looking to depart cambridge and arrive by 08:45. Sentence4: No, but I have 3 others that do. Would you like me to book one? Sentence5: No not today. I think that is everything I need. Thank you. Sentence6: I booked a seat on TR3225 with reference number 0KARLG2E . The fee is 75.09 payable at the station. Can I be of further help to you today? Sentence7: Thank you again for using our service. Good day ma'am. Sentence8: I have three guesthouse located in the south. Did you have a price range in mind? Sentence9: Yes please. I will need a ticket for one and the reference number. Sentence10: Rosa's bed and breakfast is cheap, 4 stars, located in the south, and includes internet and parking! Would you like me to book? Sentence11: No, thank you. Does that leave on Tuesday and go to birmingham new street? Sentence12: I would prefer something on the cheaper side. Question: Who has spoken the sentence 5? (A) User (B) System
Student:
Answer: (B) System