Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: I'm traveling alone, can you tell me how much the train fare costs? Sentence2: I've made the reservation and your reference number is J1DOHU0T . Sentence3: I have booked you on one. Would you like a second train? Sentence4: The cost per ticket is 23.60 pounds. Would you like me to book a train for you? Sentence5: Done! Your train leaves London Kings Cross at 11:17. Please pay 23.6 Pounds at the station. Your reference number is IDCU3WFU . Can I help you with anything else? Sentence6: nandos is is a nice place. Do you want to book ? Sentence7: I would be happy to help you with that. What day are you traveling? Sentence8: So I'm interested in portuguese food. Do you know of any restaurants that serve it in the South? Sentence9: Ok, thanks for using our service. Have a great day! Sentence10: Opps no, that was an error on my part. I won't be needing anything else. Sentence11: I will be traveling on Wednesday. Sentence12: Yes, please. 5 people at 19:30 on wednesday. Sentence13: Great I am also looking to get a train from london kings cross that will arrive by 12:30 Sentence14: Thank you. I also need a train to to arrive in Cambridge by 12:30. Sentence15: Yes please book me on the train that arrives in Cambridge on Wednesday as closest to 12:30. Sentence16: I have 4 different trains that will meet your needs. Will you be traveling alone or with a group? Question: Who has spoken the sentence 3? (A) User (B) System
Output:
Answer: (B) System