You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: I was able to book you, your reference number is HOR1CR41 . Any other questions today? Sentence2: Book it please! Can you also provide a reference number? thanks! Sentence3: Hello! I am looking for a play stay, I would like it in the expensive range and to stay in the north Sentence4: I am very sorry there are no results for an expensive hotel in the north area, would you like to try a different area or price range? Sentence5: Yes, but I need the day that you will be arriving first. Sentence6: I have 2 options here. May I suggest ashley hotel? Shall I go ahead with the booking? Sentence7: A hotel, please. For 4 people and 4 nights. Sentence8: Please book for 4 people and 4 nights starting from tuesday. Sentence9: I'm showing several guesthouses and two hotels in the north area and all have internet and parking. Would you prefer a guesthouse or hotel? Sentence10: Yes, I just double checked for you. There are some in the moderate price range if you're interested? Sentence11: Nope. Thank you so much for your help. Sentence12: It was a pleasure to assist you. Thank you for using our service. Goodbye. Sentence13: Are you sure there is no place to stay that is expensive and in the north? Sentence14: Yes please. An expensive hotel in the north with free parking and free internet. Can you book the room for me please? Question: Who has spoken the sentence 11? (A) User (B) System
A:
Answer: (B) System