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

Ex Input:
Sentence1: There are 8 trains. The latest one that would get you there on time leaves at 8:48 and arrives 9:38. Would you like me to book a ticket for you? Sentence2: Where are you traveling to and from? Sentence3: Thank you very much for all of your help. Sentence4: I am looking for a restaurant called Galleria. Sentence5: Would it be possible to book the same restaurant at 15:45? Sentence6: The travel time is 50 minutes and it costs 13.20 pounds. Sentence7: Okay you are welcome! Thank you for calling. Sentence8: I have made the reservation for 3 for Sunday at 15:45 at Galleria. Your reference number is DUY4H6WY . Is there anything else I can do for you? Sentence9: I've found Galleria, it is located at 33 Bridge Street in town centre. Would you like to make a reservation? Sentence10: Departure is Peterborough and arrival is Cambridge. Sentence11: Yes. I would also like to take a train on Sunday arriving by 09:45. Can you help me with that? Sentence12: Yes! I'd like a reservation for this Sunday at 16:45 for three people. Sentence13: Please give me travel time and the price, please. Sentence14: I'm sorry, but that time and day is unavailable. Would you like to try another day and/or time? Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: No thank you. You have helped tremendously. Sentence2: What is the address and postcode, please? Sentence3: Can you help me? I was in a car accident dispute. Sentence4: The Parkside Police Station's phone number is 01223358966 Sentence5: you are welcome Sentence6: The address is Parkside and the postcode is CB11JG. Can I help you with anything else? Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: That is all the information I need. Thank you! Sentence2: Which area and type of lodging do you prefer? Sentence3: You're very welcome. Have a great trip! Sentence4: you're welcome to use our services anytime Sentence5: Wait! I do want the hotel reservation. Can you book it for me on Thursday for 4 nights for 4 people? Sentence6: No that is all the info I need. I'm sure of it this time ha ha. Thank you! Sentence7: The Acorn Guest House is a great little 4-star place on the north side. They're moderately priced and have free parking and internet. Would you like a room there? Sentence8: Do you know what this city might have in entertainment venues? Sentence9: Is there a place to stay with a moderate price range and free parking? Sentence10: I'm looking for a place that is moderately priced and has free parking. Sentence11: I don't care about the area. If you were me, which one would you enjoy the most? Sentence12: Your room at the Acorn is booked, ref#94RRN05R . Is there anything else I can help you with today? Sentence13: There are two entertainment venues in the east, two in the south and one in the west area of town. Do you have an area preference? Sentence14: I would pick whale of a time in the west, located at Unit 8, Viking Way, Bar Hill, postcode cb238el. It is always an adventure there! Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:

Answer: (B) System