Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: I'm looking for some info on kohinoor. Sentence2: Great thank you for all your help Sentence3: That worked out for you! Your reference number is IHQK49W4 . Sentence4: I could eat at 12:45. I hope that is available. Sentence5: Great! Kohinoor is an Indian cuisine restaurant in the cheap price range! Is there anything else I can help you with? Sentence6: Unfortunately reservations are not possible for that time. Would you like to try for another day or time? Sentence7: Thank you for calling, goodbye. Sentence8: Yes, I'd like to book a table for just me at 13:45 on Friday. Question: Who has spoken the sentence 4? (A) User (B) System
A:
Answer: (A) User