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

Example Input: Sentence1: Okay. Riverboat Georgina is a boating attraction in the north. How about that? Sentence2: I don't have a preference. I just need it in the same area. Sentence3: What star rating do you prefer? Sentence4: Booking was successful! Your reference number is 8GLX5O9J . Is there anything else I can do for you? Sentence5: Yes please, I need 2 nights for 8 people and we will be arriving on Tuesday. Sentence6: Looking for a hotel that is in the north part of town. Sentence7: I recommend the Alpha-Milton Guest House on 63 milton road. Would you like me to go ahead and book you a room? Sentence8: The hotel should be in the north and doesn't need to include internet.and should be in the moderate price range Sentence9: Can you help me find an attraction to visit that is in the same area as my hotel? Sentence10: Absolutely, their phone number is 01223902091. Sentence11: Sure, there are four attractions in the north. Do you prefer boat, park, or swimmingpool? Sentence12: Thanks. That's all I needed for today. Sentence13: That sounds great, could I get their phone number please? Sentence14: Okay, have a wonderful visit! Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: My destination is cambridge. Sentence2: What day will you be traveling? Sentence3: Hey. I'm looking for a train from stansted airport. Sentence4: What is your destination ? Sentence5: I plan to go on tuesday. Sentence6: How many tickets would you like? Sentence7: There are trains departing every hour. TR5077 would get in in at 8:52, does that work for you? Sentence8: That sounds perfect. Can I get the reference number from the booking? Sentence9: I would like 4 tickets. Sentence10: Booking was successful, the total fee is 40.4 GBP payable at the station. Reference number is : WWW231NO . Is there anything else you need? Sentence11: There are several. Do you have a time you need to travel specifically? Sentence12: The train should arrive by 10:00 if at all possible. Question: Who has spoken the sentence 5? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Sure, when were you looking to book for? Sentence2: I need to leave the restaurant by 22:15. I will need the contact number and car type as well please. Sentence3: the cambridge belfry is cheap, located in the west, and has 4 stars. It has free internet and parking. Sentence4: The car type is a white skoda and the contact number is 07572111702. Will that be all? Sentence5: What time would you like the taxi to arrive? Sentence6: What about the Cambridge Chop House? It is located in the centre of town and has expensive food. Sentence7: I'm departing from the cambridge belfry and heading to the cambridge chop house. Sentence8: The Cambridge Chop House serves British cuisine and is located at 1 Kings Parade with a postcode of cb21sj. Could I make a reservation for you? Sentence9: I'm looking for information on the cambridge belfry hotel. Sentence10: Please make a taxi reservation for me. Sentence11: You're welcome. Thank you very much for using our service. Sentence12: That is all, thank you. I got all the information that I need. Thank you and have a good day. Sentence13: I'd be happy to assist you, but I will need some more information. Where are you departing from and when would you like to leave? Sentence14: I'm sorry i don't need that booked. Rather i need information on a place to dine. Preferably expensive and in the centre of town. Sentence15: Sure that sounds great! Can you please give me their address, postcode and what type of food do they serve? Sentence16: Can you book that for me? Question: Who has spoken the sentence 1? (A) User (B) System
Example Output:
Answer: (B) System