Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Thank you. I am also going to need train information. Sentence2: No not at this time. I would just like the train ID for that train. Sentence3: Prezzo is located at 21 - 24 Northampton Road. The post code is cb30ad. You can reach them at 01799521260. Sentence4: That's all, Thank you so much. Sentence5: Good eve! I'm looking for a nice place to have a spot of afternoon tea. Sentence6: welcome and have a great day Sentence7: Have a nice day. Sentence8: I need to get the phone number, address, and postcode. Sentence9: Okay thank you for calling. Sentence10: Is there anything else I can help you with today? Sentence11: I'm sorry, I didn't get any matching results. Is there any other food type you would like me to look for? Sentence12: There is one Italian restaurant in that area. Sentence13: There are actually two it looks like: Prezzo and La Margherita. Sentence14: I would like to leave on Thursday. Sentence15: Of course, what train information may I get for you today? Sentence16: sorry we got none. Sentence17: Could you try Italian then? Sentence18: Can I get the information for Prezzo? Sentence19: What information can I get for you? Sentence20: No, I would like afternoon tea in the west. Sentence21: What day will you be traveling, please? Sentence22: The train id is TR1704. Sentence23: Okay thanks for calling. Sentence24: I have a train that departs at 10:11. Would you like to book it? Sentence25: What is the name? Sentence26: I need a train to leave after 9:30 from Kings Lynn departing for Cambridge on Thursday. Question: Who has spoken the sentence 1? (A) User (B) System
Output:
Answer: (B) System