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: That sounds great. Can you book me a table for 12:00 on Sunday for 5 people please? Sentence2: That is all needed , good bye. Sentence3: If you're interested in cheap international food, I recommend dining at The Missing Sock located at Finders Corner Newmarket Road. Sentence4: Hey! Yeah I am looking for a cheap place to eat in Cambridge. Particularly interested in international food. Sentence5: Your booking was successful. The table will be reserved for 15 minutes. Your reference number is : RTMFJMPT . Is there anything else I can assist you with? Sentence6: Thank you have a great day. Question: Who has spoken the sentence 3? (A) User (B) System
A:
Answer: (B) System