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 care when I arrive, but I need to leave after 10:00. Sentence2: Perfect, thanks so much for your help. Sentence3: Yes. Wednesday please. Sentence4: I have successfully make a booking for 5 on that train. Sentence5: Sounds great. Can I get their postcode please? Sentence6: Is there anything else I can assist you with today? Sentence7: Can you find me a train from Stansted Airport? Sentence8: Alright, thanks for contacting Cambridge TownInfo centre! Have a good day. Sentence9: TR0467 leaves the airport at 10:24. Would you like tickets for that train? Sentence10: No that is everything. Have a good day. Sentence11: Queen's college is an excellent choice. Sentence12: The postcode for Queen's College is cb39et. And the reference number for your train (booked earlier) is WMUC700A . Sentence13: Can I have the reference number please? I'm also looking for some places to go, maybe a college in the west. Sentence14: Not a problem. Any day in particular? Sentence15: There are plenty of options. Where will you be arriving and do you have a time preference? Sentence16: Yes, for five please. Question: Who has spoken the sentence 14? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Phone is 01223505015 and postcode cb11ln. Would you like me to get you a table? Sentence2: No that's all. Thanks so much! Sentence3: I booked you on TR8399 arriving at 10:07. Booking was successful, the total fee is 17.6 GBP payable at the station . Reference number is : AVBKNMXQ . Sentence4: Thank you very much. Sentence5: I'm looking for an expensive restaurant that serves european food while I'm in Cambridge. Sentence6: Darry's Cookhouse and Wine Shop is located at 40270 King Street at the City Centre. Would you like their phone number? Sentence7: Yes, please, and their postcode as well. Sentence8: You are welcome. Enjoy your stay. Sentence9: No. But I need a train going to Ely. Sentence10: Where are you travelling from and what time? Sentence11: I am departing from cambridge on monday and I need to arrive to Ely by 11:15. Sentence12: You choose one please. I need it for 4 people. Sentence13: Is there anything else I can help you with? Sentence14: I have 3 trains available leaving at 06:07, 08:07, and 10:07. What time would you like to leave? Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: What day will you be traveling? Sentence2: You're welcome! And thank you, likewise! Sentence3: I am looking for a train going to Cambridge and should depart from King Lynn arriving by 08:15 Sentence4: Okay, there are 9 different available restaurants. What type of food would you like to eat? Sentence5: I need it on Friday. Sentence6: Can I ask you for a restaurant suggestion in the north today? Sentence7: that is it for today. have a god day Sentence8: I would like to try French and I need a reservation for 2 people at 12:45 on Friday. Sentence9: Yes, I need 2 tickets please. Sentence10: I have booked you for Restaurant Two Two. The table will be reserved 15 minutes after 12:45. Reference number is 6BD74VBB . Is there anything else I can do? Sentence11: Your booking was successful, the total fee is 19.6 GBP payable at the station . Reference number is : SKG9JJLB . What else can I help you with today? Sentence12: What types of expensive restaurants are in that part of town? Sentence13: I have Asian Oriental, Chinese, French, Italian and Indian. Any preference? Sentence14: There is a train arriving at 07:58 would you like me to book tickets for that one? Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:

Answer: (B) System