You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Example Input: Sentence1: Booked! You leave at 13:17, your reference number is 3WICPFQP, you will pay 141.6 at the station. Sentence2: I am looking to book a train. Sentence3: Could you tell me your location, which area of town or what business you are departing from? Sentence4: Certainly. May I ask where you want to depart from? Sentence5: I need to depart from London Kings Cross and go to Cambridge. Sentence6: We are leaving London Kings Cross and need to do so after 12:45 on Friday for 6 people and can I get the reference number for the booking? Sentence7: Okay thank you. That is all I need. Sentence8: Okay thank you for calling. Sentence9: I would like to leave from the closest station to my location. Sentence10: To clarify, are you looking for a train to Cambridge? All Friday trains from London Kings Cross go to Cambridge. Question: Who has spoken the sentence 8? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Sure, it's at granta place, Mill lane. Sentence2: Sure it's a moderately priced 4 star guesthouse in the east. Would you like me to book it? Sentence3: From all of us at Cambridge, we hope you enjoy your stay! Farewell! Sentence4: Thank you so much for all of your help today. I am all set. Bye. Sentence5: Could you tell me their address as well please? Sentence6: Thanks! I'm also looking for information on the A & B Guesthouse. What can you tell me about that place? Sentence7: Yes, the post code for the A and B Guest House is cb12dp. Is there anything else I can do for you? Sentence8: What is the phone number for scudamores punting co? Sentence9: Okay, which would you like to leave from? Sentence10: The phone number for Scudamores Punting Co is 01223359750. Is there anything else I can help you with today? Sentence11: Your taxi is booked. The car is a yellow honda and the contact number is 07826111038 Sentence12: May I have the postcode? Sentence13: I would like to leave the hotel by 7:00. Also, can you give me the contact number and car type once you have booked it? Sentence14: I also need a taxi to go between the two places. Question: Who has spoken the sentence 4? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Meghna is an indian restaurant in the west part of town and in the moderate price range. Sentence2: Can you find me a moderately priced restaurant in the west ? Sentence3: Thank you good bye. Sentence4: thank you Sentence5: 01223 727410 Sentence6: Thank you for using this system. Goodbye. Sentence7: Thank you . Good bye Sentence8: What is the phone number? Question: Who has spoken the sentence 6? (A) User (B) System
Example Output:
Answer: (A) User