You will be given a definition of a task first, then some input of the task.
You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: I am looking for a place to dine located in the centre and in the moderate price range. Can you help me? Sentence2: Is there anything else I can assist you with today? Sentence3: I was able to book Ian Hong House, reference number is E8V1XGOA . Sentence4: Yes please make it for sunday at 14:00, for 4 people. And can I also get the reference number? Sentence5: Thanks so much! Sentence6: is there chinese available? Sentence7: Great! Please contact us again if you need anything else. Sentence8: You're in luck, we have many moderately priced restaurants in the centre. Cuisine offerings vary from asian oriental to european. What sounds good to you today? Sentence9: Yes, there are 3. Can I make a dinner reservation for you at one of them? Sentence10: No thank you. That will be all. Question: Who has spoken the sentence 3? (A) User (B) System
Output:
Answer: (B) System