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

Ex Input:
Sentence1: I don't need a ticket just yet. Can you tell me the total cost per ticket, though? Sentence2: I need it to go to cambridge and should depart from leicester. Sentence3: I want to find a hotel to stay at that has free wifi and is moderately priced. Can you help? Sentence4: There are 3 guesthouses that meet your needs. 2 of them have free parking along with the Internet, and one does not. Carolina Bed and Breakfast is very nice. Sentence5: Is there a particular area of town that you prefer? Sentence6: I hope to. Thanks again. Bye. Sentence7: Enjoy your trip. Sentence8: Im getting the info up now, what date and time? Sentence9: I'd like to arrive by 13:45 on sunday. Sentence10: The TR8285 arrives by 12:54. Would you like me to book this one? Sentence11: Have a nice day. Sentence12: Yes, I'd like to be on the east side. The hotel should have a 4 star rating please. Sentence13: Ok, Carolina B&B it is. Can you book me a room for 1 person staying 5 nights on Sunday please? Sentence14: Yes I also need a train. Can you help me? Sentence15: Your booking was successful and your reference number is BCT54NA8 . May I help you with anything else today? Sentence16: That will be all for the day, thank you. Sentence17: All available tickets cost 30.24 pounds each. What else can I do for you? Sentence18: Definitely. When were you wanting to travel? Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Have a good day! Sentence2: No thank you, that is all. Sentence3: I am looking for a train to London Kings Cross that departs after 08:15. Sentence4: The TR2000 leaves cambridge going to london kings cross on friday at 09:00. It arrives in london kings cross at 09:51. How does that sound? Sentence5: Yes. What do you have available? Sentence6: Are you departing from cambridge station? Sentence7: I'll be travelling on a Wednesday. Sentence8: That's great. Please book me two tickets. Sentence9: The booking was successful and the fee is 47.2 GBP payable at the station. Reference number is E2N0JHSY . May I assist you with anything else today. Sentence10: What day would you like to travel? Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Yes, I need tickets for 3 people please. Sentence2: Any area is fine. Please just recommend a restaurant, and send me the address and postcode. Thanks in advance! Sentence3: Your booking was successful, the total fee is 53.7 GBP payable at the station . Reference number is : 23926N66 . Let me know if I can do anything else for you. Sentence4: I found multiple Indian restaurants in the expensive price range. There are many choices in the Centre, which part of town do you prefer? Sentence5: Only the best will do. Can you find me something in the expensive price range? Sentence6: I hope you have a great time. Sentence7: thanks again for everything. Sentence8: Of course. What time and from where are you departing? Sentence9: Rajmahal is very popular. Their address is 7 Barnwell Road Fen Ditton and their post code is cb58rg. Will that be all today? Sentence10: which side of town do you prefer? Sentence11: that is it for today. have a good day Sentence12: Train TR6989 leaves at 10:32 and arrives by 11:32. Would you like to book it? Sentence13: You are quite welcome. Thank you for using our services. Sentence14: I need to catch a train into Cambridge. Could you help me find one? Sentence15: I also need a place to eat serving indian food Sentence16: I need to go to cambridge from broxbourne and the train should leave after 10:00 on a tuesday. Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:

Answer: (B) System