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

[EX Q]: Sentence1: I have 5 optionsd available,all have WiFi Sentence2: Do you know if any of them offer free wifi? Sentence3: Sure! We have 18 4 star guesthouses, would you like a specific part of town or price range? Sentence4: I'm needing a 4 star guest house today. Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: 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
[EX A]: Answer: (A) User

[EX Q]: Sentence1: You're welcome, glad I could help. Sentence2: I personally like Parkside Pools. It's in the center of town, on Gonville Place. Sentence3: Any area is fine. Which of the 4 swimming pools do you suggest? Sentence4: It is cb11ly. Is there anything else I can help you with? Sentence5: Where will you be departing from? Sentence6: Thanks. That was all I needed. Goodbye. Sentence7: I am departing from Cambridge. Sentence8: I am looking for information on places to go in Cambridge. Can you help with that? Sentence9: My destination is london kings cross Sentence10: Can I get the postcode as well? Sentence11: I can help with that. Is there a particular area you're interested in? Sentence12: Yes, there are 4 swimming pools that match those requirements. Is there a particular area you would like to go to? Sentence13: There are 278 trains that meet that criteria. Would you like to narrow down your options by departure site, destination, or arrival time? Sentence14: I have made that reservation and your reference number is 1702SDBO . Sentence15: TR1502 arrives in london kings cross friday at 11:51. Would you like me to book you any seats? Sentence16: I also need a train leaving after 11:00 on friday Sentence17: What I'd really like is to find a swimmingpool. Sentence18: Yes book for 8 people and I need a reference number Question: Who has spoken the sentence 13? (A) User (B) System
[EX A]:
Answer: (B) System