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

Example input: Sentence1:i need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
Example output: Answer: (A) User
Example explanation: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system
Q: Sentence1: 1 room, and I'll need it for 2 nights starting Friday. Sentence2: No it doesn't. Sentence3: Booking was successful. Reference number is : B823WKVK . Sentence4: I am also looking for a train on the same day to Cambridge Sentence5: Yes, and Thank you kind person for helping me! Sentence6: I am looking for a place to stay. The hotel should be in the moderate price range Sentence7: Booking was successful, the total fee is 23.6 GBP payable at the station. Your reference number is S5436QTX . Can I help you with anything else? Sentence8: I would like a guest house, with free parking. Sentence9: I have three moderately priced hotels. Do you need internet and/or parking? Sentence10: Train TR5686 leaves london kings cross. Would you like a ticket? Sentence11: Does it matter what side of town it is on? Sentence12: Thank you goodbye. Sentence13: If everything is fine. Then I hope you have a wonderful day. Sentence14: You're welcome. It's really my pleasure. Sentence15: No that's everything. You've been great thanks. Sentence16: Ok how about acorn guest house. They are moderately priced and have 4 stars. How many rooms and how long is your stay going to be? Question: Who has spoken the sentence 3? (A) User (B) System
A:
Answer: (B) System