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: Yeah, what can you tell me about Archway House? Sentence2: I have made your reservations. Your reference number is JZ930ED7 . Sentence3: Thanks! I would also like to book a train that goes to cambridge after 10:15 and leaves from birmingham new street on friday Sentence4: I would like to travel on Friday. Sentence5: ok, the TR0044 leaves at 10:40. do you need a ticket? Sentence6: I need to book a stay for 5 nights for 6 people there. Sentence7: Certainly! What day would you like to arrive? Sentence8: It's on the north side of town and in the moderate price range. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User