Task: Speaker Identification
Input (English): Sentence1: Yes, please. I need a table for 8 on Thursday at 16:30. Sentence2: I was able to book the train TR4235. The Reference number is : NIR4Z9CN . Sentence3: Thanh Binh is a cheap Vietnamese restaurant located in the west part of town at 17 Magdalene Street City Centre. You may contact them at 01223362456. Would you like to book? Sentence4: that's all i needed thanks! Sentence5: There is a train leaving Birmingham New Street at 05:40 and arriving at 08:23 on Thursday. Would you like me to book that one? Sentence6: Okay have a great day! Sentence7: Okay the booking was successful. The reference number is WJCUA6MT . Sentence8: Sure thing, when will you be departing? Sentence9: Terrific. I am also looking for a train to Cambridge. Can you help me with that? Sentence10: I'd like recommendations for a restaurant that serves Vietnamese food. Sentence11: Yes I need a booking for 8 people please. Sentence12: Thursday and I'll be leaving from birmingham new street. Sentence13: You are all set? Or would you like some help with something else? Sentence14: No that is all. Cheers, bye. Question: Who has spoken the sentence 5? (A) User (B) System
Output (English): Answer: (B) System