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: You're welcome. Is there anything else you may need? Sentence2: That should work. I need booking for 2 people and I will need the reference number, please. Sentence3: I have a train to Cambridge leaving Ely at 13:35. Will this work for you? Sentence4: I have booked two spots for you. The reference number is IU3F4FKV Sentence5: Alright. Have a great day. Bye now! Sentence6: Wonderful. Thank you. Sentence7: I'm looking for a train departing from ely. Sentence8: On what day do you wish to travel and to what destination? Sentence9: Thanks, that's all. Good bye. Sentence10: I'd like to travel to Cambridge on Wednesday, but I don't want to leave before noon. Question: Who has spoken the sentence 1? (A) User (B) System
Student:
Answer: (B) System