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: Sounds great- thanks for your help! Sentence2: Have a great visit! Sentence3: You're all set. Your Reference number is : T9VLKXV5 . Sentence4: No thanks, but can I just get some information about Cityroomz? Sentence5: Hello! I'm needing a place to stay in the center of town. Parking is not important to me. What do you have? Sentence6: I have a moderately priced hotel called Cityroomz available. Can I help you book your stay? Sentence7: I would like to book 5 nights on sunday for 5. Sentence8: Cityroomz is a moderatly priced 0-star hotel in the centre. They offer internet and parking and are located on station road. Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User