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

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
Answer: (A) User

Sentence1: I'm departing from Norwich and want to arrive by 13:00. Sentence2: Yes, I will need a train to cambridge on thursday. Sentence3: You are booked for 7 people, 5 nights starting thursday. Your reference number is ZFREK5SQ . May I help you with anything else today? Sentence4: the Kirkwood House is in the north and it sports a four star rating. It has internet and parking and the price range is moderate. Would you like to book? Sentence5: You're welcome. Have a great time! Sentence6: The travel time of that train is 79 minutes. Sentence7: thanks for your help you have been great! Sentence8: That sounds perfect. Can you reserve it for seven people? Sentence9: Where will you be departing from? Sentence10: I'm looking for a particular hotel called the kirkwood house. Where is it, and what other information do you have about it? Sentence11: TR3078 departs at 11:16 and arrives by 12:35. Would you like a ticket? Sentence12: not right now, what's the travel time on that ride? Sentence13: Sure, I can book it for you. What day did you want to arrive and for how many days? Sentence14: 5 nights starting Thursday. Question: Who has spoken the sentence 4? (A) User (B) System
Answer: (A) User

Sentence1: If there is anything else you might need please feel free to call back. Enjoy your day! Sentence2: Da vinci pizzeria is the only cheap Italian restaurant in the north, located at 20 Milton Road Chesterton. Would you like to reserve a table? Sentence3: The address is 20 Milton Road Chesterton. The postcode is cb41jy and the phone number is 01223351707. Is there anything else I can help you with? Sentence4: Sure thing where will you be departing from? Sentence5: Train TR9460 leaves Cambridge at 15:36 and would get you to Norwich by 16:55. Would you like me to book for you? Sentence6: I'm looking for something in the north, please! Sentence7: No thanks. Maths isn't my biggest strength so please tell me what the total travel time is. Sentence8: I would like to go to Norwich. Sentence9: I am looking for Italian restaurants in Cambridge in the cheap price range. Sentence10: I'll be happy to help with that. Where would you like to depart from and where would you like to go? Sentence11: Yes, please. I also need a train on Monday, arriving at 17:45. Sentence12: No thanks, I just need the phone number, address, and postcode. Sentence13: We have a few in the north, west, and centre. Do you have a preferred location? Sentence14: I think that is all the info on the train that I needed. Sentence15: I will be leaving cambridge heading to norwich Sentence16: The total travel time is 79 minutes. Can I do anything else for you today? Question: Who has spoken the sentence 11? (A) User (B) System

Answer: (B) System