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: Is there a certain price range? Sentence2: Thank you for choosing Cambridge TownInfo. I hope you have a great day. Sentence3: I'd recommend curry prince in the east. It's a moderately priced restaurant. Would you like a reservation? Sentence4: Yes, it is in the moderate price range. Would you like me to book it for you? Sentence5: thanks! i'm also looking for a hungarian restaurant. Sentence6: So, my group is going to need a table at 15:30 on the day we arrive at the hotel. Sentence7: I'm sorry, but I am not finding any Hungarian restaurants. Would you consider another type of cuisine? Sentence8: You can look for indian restaurants. Sentence9: Booking was successful. The table will be reserved for 15 minutes.Reference number is : G7Z1RQ47 . Sentence10: I have made the reservations and your reference number JQUU393D . Sentence11: Does acorn guest house on 154 chesterton road work for you? Should I book it? Sentence12: Thank you. That is all that I need. Sentence13: Is it in the moderate price range? Sentence14: Yes. Please book it for 7 people and for 5 nights starting this Thursday. Sentence15: No, any price range will work. Sentence16: I'm looking for a guesthouse with free parking, please. Question: Who has spoken the sentence 3? (A) User (B) System
Output:
Answer: (B) System