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: No, you have been very helpful. Goodbye. Sentence2: Please book me a taxi leaving the History of Science Museum back to the Gonville Hotel. I need to leave the museum by 17:45. Sentence3: Yes, I'm also like to get away from it all and stay at a place in the centre with no internet. Sentence4: Their phone number is: 01223330906. Their address is: free school lane. Can I help you with anything else? Sentence5: 4 nights starting Friday for just myself. If you could book that and provide me a reference number that would be great! Sentence6: Okay, your room is reserved. The reference number is 7OB0YMGO . What else can I help you with? Sentence7: Of course. A blue Volvo will be picking you up at the Museum. The contact number is 07883239708. Will there be anything further? Sentence8: I am looking for an entertainment attraction in the centre of town. Sentence9: Yes, if you could do that. Sentence10: Unfortunately, I was unable to find something in entertainment in the centre of town. Can I help you in finding something in a different area or category? Sentence11: Then the Gonville Hotel is the place for you. Would you like a room reserved for you? Sentence12: I'm sorry, there is nothing in the centre without internet. Would you like to try the North side of town perhaps? Sentence13: The History of Science Museum sounds interesting. Could you please send me the phone number and address? Sentence14: There are 11 museums in the centre, all of which are free. There are art galleries, an archaeology museum, and a history of science museum. Sentence15: Could you tell me about the types of museums in the Centre? Sentence16: No. I would like to stay in the same area as the attraction. It doesn't have to have internet but it does need to be expensive and with 3 stars. Sentence17: Thank you. Goodbye. Sentence18: How many nights and starting when? Question: Who has spoken the sentence 14? (A) User (B) System
Output:
Answer: (A) User