You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: I'm also looking for a train. I need to depart from cambridge and arrive by 19:15. Sentence2: Soul Tree Nightclub is nice and has a 4 pounds entrance fee. The postcode is cb23qf. Can I help with anything else? Sentence3: I'm looking for a nightclub in downtown Cambridge. Sentence4: I have several, is there a price you would like to keep entrance fee under? Sentence5: You are very welcome and have a good night. Sentence6: I would like to go to Kings Lynn on Monday. Sentence7: That's everything. Thank you. Sentence8: I don't really care. Can you suggest a place? And give me a postcode for the one you suggest please. Sentence9: There are many trains that day. I Have one that that gets in at 17:58, would you like me to book it? Sentence10: Okay, I have booked your train ticket from Cambridge to Kings Lynn. Your reference number is RX3523989 . Sentence11: There are many trains that fit your criteria. Is there a destination to narrow the search? Sentence12: That works for me. Book it for 2 people and I need the reference number. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User