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'm coming to visit Cambridge! I can't wait to see all of the local tourist attractions! Do you have any Mediterranean restaurants around there? Sentence2: That sounds perfect! Can I have the address and phone number? Sentence3: There are eight attractions in that area, is there a type of attraction you would prefer? Sentence4: Sure. The phone number is 01223464646 and the address is 14 King's Parade. Is there anything else I can help you with? Sentence5: I can recommend Byard Art museum. Admission is free. Sentence6: I will need the reference number. Also, I'm looking for places to go in the south. Sentence7: Um. How about 10:00? Sentence8: The reference number for your booking is AYK7PMNB . Is there any place in particular you wish to go? Sentence9: Thank you, please let me know if you have any more question. Sentence10: I don't know the city very well. Do you have any recommendations for attractions in the south? Sentence11: Yes, expensive. The food should serve eritrean food. British if that's not available. Sentence12: Yes, book the Shiraz for one at 11:00 on Monday, please. Sentence13: Oh yes we have at least three restaurants located in the city center that serve Mediterranean food. They vary in price range. Do you have a preference? Sentence14: That's all I need! Sentence15: A museum if you have it, otherwise I'll take what you have at the top of your list. Sentence16: There is La Mimosa and Shiraz restaurant that are both in the Centre and both expensive. Would you like me to book one of these for you? Sentence17: Your booking was successful for 10:00 on monday. Is there anything else I can assist you with today? Sentence18: Sorry they seem to be full. Could we try another time/ Question: Who has spoken the sentence 14? (A) User (B) System
Output:
Answer: (A) User