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

Example Input: Sentence1: Perfect, I have train TR1472 that meets your criteria, would you like me to book a ticket for you? Sentence2: I can help you with that. Where are you traveling from? Sentence3: Book it for 3 people. Sentence4: Sure. Your train is booked. The fee will be 30.29 GBP and your reference number is 7FGDRE1Q . Sentence5: I need to find a place to stay as well. Can you help? Sentence6: I need to find a train into Cambridge that will arrive by 09:15. Sentence7: I will be leaving the Stansted Airport on Thursday. Sentence8: I need to know what you're looking for first. Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: i want some mexican food. Sentence2: Dojo Noodle Bar serves asian oriental food and is located in the centre of town. The price range is cheap. Sentence3: The phone number for dojo noodle bar is 01223 363471. Would you like any other information? Sentence4: I don't care. Sentence5: You're welcome. Goodbye. Sentence6: We have four Asian oriental restaurants in centre. What price range do you prefer? Sentence7: What is the phone number? Sentence8: No, thank you, that's all I need. Thank you and goodbye! Sentence9: The only listing for Mexican food is Chiquito Restaurant Bar. How else may I assist you? Sentence10: I want a restaurant in the centre and serves asian oriental food? What is the phone number? Question: Who has spoken the sentence 9? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Ok I will book it for you Sentence2: Yes please. Two nights from Tuesday for two people. Sentence3: The TR3677 arrives at 17:58. Would you like to book it? Sentence4: I need a room for the same group of people for 1 night on the same day. And I need the reference number then too please Sentence5: I got your room booked at the Carolina Bed and Breakfast. Your reference is FYLDIZUF . Is there anything else I can help you with today? Sentence6: Okay, I think I can help you. Where will be coming from? Sentence7: Can you help me find a train going to cambridge that arrives by 18:30? Sentence8: Thanks so much. Can you also help me look for the Carolina Bed and Breakfast? Sentence9: Carolina Bed and Breakfast is in the East, it is a guesthouse in the moderate price range. Would you like to book a room? Sentence10: I will be departing kings lynn. Sentence11: Yes for 2 people on a Tuesday please. And I would like the reference number. Sentence12: I'm going with TR5793 since you are travelling on Tuesday arriving at the same time. The total fee is 19.6 GBP payable at the station . Reference number is : 4NLGW7WM . Question: Who has spoken the sentence 8? (A) User (B) System
Example Output:
Answer: (A) User