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

Example Input: Sentence1: It is in the centre part of town. Sentence2: That's all. Thank you, goodbye! Sentence3: What is its phone number? Sentence4: Okay, thanks. And what area is it in please? Sentence5: Michaelhouse Cafe is at St. Michael's Church Trinity Street City Centre. How does that sound? Sentence6: I am looking for a restaurant in the expensive price range that serves Belgian food. Sentence7: The phone number is 01223 309147. Sentence8: I have nothing available meeting your request, would you like to try a different price range or another type of cuisine? Sentence9: What is the address of the restaurant? Sentence10: Yes, is there any expensive European eateries? Sentence11: That's good, thanks. Sentence12: Would you like anything else? Sentence13: Yes, there are 4 expensive restaurants serving european food. Which area would you like? Sentence14: your welcome. thanks for calling Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Okay, I've booked 4 tickets. Your reference number is FBZ6Z3NH . Can I help with anything else? Sentence2: the cambridge belfry is a cheap hotel. would you like me to make you a reservation? Sentence3: I don't have a preference, but I would like it to be rated 4 stars. Sentence4: Yes, can i book it for 4 people. Sentence5: Yes. I am also looking for a hotel that has free wifi and a 4 star rating. Sentence6: It is a hotel not guest house. Sentence7: welcome anytime you need us Sentence8: that is all for today and thanks for helping Sentence9: You are booked for 4 nights for 4 people starting on Friday at the Cambridge Belfry. Your reference number is FKV26SLF . May I help you with anything else? Sentence10: Yes, I would like a reservation. Sentence11: I would like it for 4 nights starting Monday for 4 people . Sentence12: Sorry, I want to stay in a guesthouse. Sentence13: What are your arrival details please? Sentence14: I see three options available. Two are expensive and one is cheap. What is your price preference? Sentence15: I appreciate everything. Have a great day. Bye. Sentence16: OK, we have many options for guesthouse in the cheap price range, including wifi. Is there an area you'd like to stay in? Sentence17: Where are you heading, and on what day? Sentence18: I would prefer the cheap one please. Sentence19: I don't think so but before I let you go, I just want to be sure, the cambridge belfry is a guest house, correct? Sentence20: Booking was successful. Reference number is : FKV26SLF Sentence21: Kings Lynn on Friday Sentence22: Can you help me find a train leaving after 12:15 departing from cambridge? Sentence23: thanks and welcome anytime Sentence24: TR8494 leaves at 13:11. Want to book? Question: Who has spoken the sentence 10? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: I would like to leave from Birmingham New Street. Sentence2: Same day as my Golden Curry reservation, please. Sentence3: Yes please. There will 8 of us at 15:15 on Monday. Sentence4: Yes that is all I need, thank you. Sentence5: Is there anything else i can you with such as booking reservations for entertainment ventures afterwards. Sentence6: On what day are you looking to travel? Sentence7: The TR9942 will get you there at 11:23. Would that work for you? Sentence8: Booking was successful.The table will be reserved for 15 minutes. Reference number is : 7X63LJXX . Anything else? Sentence9: I'm looking for a train as well to Cambridge that will arrive by 12:15, is there anything available? Sentence10: They are a wonderful indian restaurant in the centre of town. They are rather expensive. They are located on Mill Road City Centre. Can I help you reserve a table? Sentence11: Where will you be traveling from? Sentence12: Need a restaurant called the golden curry Question: Who has spoken the sentence 8? (A) User (B) System
Example Output:
Answer: (A) User