Task: Speaker Identification
Input (English): Sentence1: Sure, Are you leaving, or going to london kings cross? Sentence2: I am going to London. Sentence3: You're very welcome. Enjoy your trip. Goodbye! Sentence4: I need to leave from Kings Cross on a Saturday please. Sentence5: I am looking for a train that departs from cambridge after 14:00. Sentence6: Okay, I'd recommended TR6203 leaving at 15:00 and arriving at 15:51, total duration 51 minutes. The price is 18.88 pounds. Would that work for you? Sentence7: There are hundreds of those! What day are you traveling and what's your destination station? Sentence8: Yes thank you very much that's all I needed! Question: Who has spoken the sentence 4? (A) User (B) System
Output (English): Answer: (A) User