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: Thank you. Have a good day. Sentence2: Maybe 15:15 work work then. Could you try that? Sentence3: Yes, I do. I'll be taking the train into Cambridge. Sentence4: I was able to book the train for you. The reference number is 4ITZ3ZMO and the total fee is 140.8 GBP payable at the station. Sentence5: Your booking was successful. You have a table reserved for 15 minutes. Your reference number is BVU9ETYF . Sentence6: I am looking for an expensive Italian restaurant. Sentence7: I'm sorry, I'm unable to book you a table at 16:15. Would you like to try another time? Sentence8: Sounds good. Could you book me a reservation for 8, Friday, at 16:15? Sentence9: Great, thanks! Can you also help me find a train departing norwich arriving by 11:45? Sentence10: Did you want that train for Friday? Sentence11: How about Cafe Uno, in the centre of town, 32 Bridge Street City Centre Sentence12: There are 6 trains leaving to Cambridge on Friday. We have one leaving at 10:16 and arriving by 11:35. Would that be okay? Sentence13: Great! That is all I need today. Sentence14: That would be perfect! Please make a booking for 8 people. Question: Who has spoken the sentence 4? (A) User (B) System
Student:
Answer: (A) User