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 have 5, 2 Indian, a Chinese, a British, and a gastropub. Any of them tickle your fancy? Sentence2: No, that's it. Thank you for your assistance today, you have been very helpful! Sentence3: It is called cambridge book and print gallery. Sentence4: Hello, what expensive restaurants do you know of in the East part of town? Sentence5: Can you tell me about the indian places? Are any of them expensive? Sentence6: I need to find an attraction. Sentence7: Good news, the entrance fee is free! And the phone number is 01223694264. Can I help you with anything else today? Sentence8: Cambridge book and print gallery is in the west, not the east. Are you sure that was the name of the attraction? Sentence9: Have a great night. I'm glad to be of assistance! Sentence10: Yes, I just need the entrance fee and phone number Sentence11: Sitar Tandoori is my favorite. They are indeed expensive. Would you like to book a table there? Sentence12: There are several attractions in the east part of town. Are you interested in a specific type, such as a museum or outdoors? Sentence13: Their phone number is 01223249955. Would you like to make a reservation? Or can I help with anything else? Sentence14: What is their phone number? Question: Who has spoken the sentence 13? (A) User (B) System
Output:
Answer: (B) System