Task: Speaker Identification
Input (English): Sentence1: I will be leaving on Thursday. Can you book and give me the reference number? Sentence2: It does have free wi-fi. I would be happy to book it for you. When will you check in, how many nights and how many guests? Sentence3: I would like to check in on Monday and stay till Thursday. Just me and my wife. Sentence4: The Thanh Binh is a cheap Vietnamese restaurant in the West, and it is located in 17 Magdalene Street City Centre cb30af. Sentence5: Would the university arms hotel work for you? They're located on Regent St, downtown. Sentence6: Will you be leaving on Thursday or will you be staying at the hotel Thursday evening? Sentence7: I apologize. I was able to book the University Arms Hotel starting on Monday for 3 nights for you and your wife. The reference number is A4FZE39M . Sentence8: As long as it has wifi.Can you book it for me ? Sentence9: Thank you. Good bye. Sentence10: Are you sure you can't find me a hotel in the centre area, 4 stars, free wifi with availability for 2 people for three nights starting on monday? Sentence11: May I have their phone number please? Sentence12: No that's all the information I need for now. Thank you very much, have a nice evening. Good bye. Sentence13: I was unable to book, do you want to add a day? Sentence14: Their phone number is 01223362456. Can I help you with anything else? Sentence15: Hello. I need a place to stay in Cambridge, in the centre that is 4 stars. Sentence16: Thanks! I'd also like a vietnamese restaurant. A cheap one, though. Question: Who has spoken the sentence 15? (A) User (B) System
Output (English): Answer: (B) System