Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Alright, thank you. Goodbye. Sentence2: That would be greatly appreciated. I will have one other person with me, this will be on sunday at 18:15. Also could i get the reference number? Sentence3: No, you have been very helpful. Thank you. Sentence4: Thanks I appreciate it. Bye! Sentence5: How about the Galleria in the town centre? I could make a reservation for you if you wish. Sentence6: Yes actually, can we find something in the moderate price range? Sentence7: Thank you for using our service. Have all of your needs been met? Sentence8: Sure, there are lots of good European restaurants in town. Is there a price range that you prefer? Sentence9: Know anywhere that has european food? Sentence10: You're welcome. Thank you for using the Cambridge Towninfo Centre. Sentence11: You are all set for Sunday. The reference number is 7W544X5O . Is there anything else I could help you with? Sentence12: That should be all I need, thank you. Question: Who has spoken the sentence 11? (A) User (B) System
Output:
Answer: (B) System