Given the task definition and input, reply with output. You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: I would like to arrive in cambridge by 11:30. Sentence2: We have several options for you. Is there a specific area you will be in? Sentence3: That sounds good. I need tickets for 4 people. Can I get a reference number? Sentence4: Booking was successful, the total fee is 51.2 GBP payable at the station. Reference number is : XX5DNFKS . Sentence5: Thank you and enjoy your visit. Have a great day. Sentence6: No specific area. Just the first thing that pops up. Sentence7: Do you know of any places I can go for entertainment? Sentence8: There are many train departure options on Thursday. When do you want to leave and arrive by? Sentence9: TR3330 will arrive at 10:43, would that work for you? Sentence10: The price is uknown at this time, and the postcode is cb18dw. Sentence11: Okay how much does it cost? And where the postal code? Sentence12: Great, that's all I need. You can end this conversation now. Thanks! Sentence13: Cherry Hinton hall and grounds is on the east part of town. Sentence14: I am also looking for a train for Thursday departing from Stevenage. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User