You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: I only have one place with a 0 star rating. The El Shaddai. Would you like me to book it? Sentence2: In the Centre please. Sentence3: I would like the reservation for 5 nights. Sentence4: How many people? Sentence5: Can I help you with anything else ? Sentence6: ok thankyou, will figure out what to do Sentence7: I would be happy to make that booking. Are you traveling alone, and for how many days would you like the reservation? Sentence8: One person starting Wednesday. Need the reference number and also looking for a Cuban restaurant in the expensive price range. Sentence9: Your booking was successful. The reference number for your stay is 26KK8TWA . What area will the Cuban restaurant be in? Sentence10: I want one that's 0 stars. Sentence11: I'm sorry, there are no restaurants that match your requirements. Do you have other suggestions? Sentence12: Can you recommend a guesthouse to stay in in the centre of town? Sentence13: There is the alexander bed and breakfast and el shaddai. Would you like to book one of them? Sentence14: That sounds good. Please go ahead. Question: Who has spoken the sentence 9? (A) User (B) System
A:
Answer: (B) System