Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: Happy to be of help. Enjoy the rest of your day! Sentence2: Any departure time is fine. Sentence3: Your party of 5 is booked for the restaurant at 15:15 and the reference number is 6OWS31DG . Can I help you with anything else? Sentence4: Can you try 15:15? And I'll need a reference number if they have a table available. Sentence5: Sitar Tandoori is an expensive indian restaurant on the east side of town. They are located at 43 High Street Cherry Hinton Cherry Hinton, cb19hx. Their phone is 01223249955. Sentence6: Great that's all I needed, thank you for your help. Sentence7: I need 5 tickets. Can I please also have the reference number? Sentence8: Okay I can book you for TR9020 leaving at 05:16 on Monday. How many tickets would you like? Sentence9: I'd like to book a table for the same number of people (5) for that same day at 16:15 if it's available. I'd also like the reference number for that please. Sentence10: There are 19 trains that meet your needs. Would you like to narrow it down by time or destination? Sentence11: Unfortunately, the time that you provided for 5 people is not available. Do you have other times that you prefer? Sentence12: Yes, actually. I'm looking for information on the Sitar Tandoori restaurant. Sentence13: I want to find a train that leaves from Norwich on Monday. Sentence14: Booking was successful, the total fee is 88 GBP payable at the station . Reference number is : MD5UWGDZ . Is there anything else I can help you with today? Sentence15: There are 6 different trains that arrive by 12:15, did you have a time you wanted to leave Norwich by? Sentence16: Yes, the train needs to arrive in Cambridge by 12:15. Question: Who has spoken the sentence 3? (A) User (B) System
A:
Answer: (B) System