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'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: The address for that is 6 trinity street. Sentence2: I don't need to make the reservation now. Thank you though. I would like the address for Cambridge Contemporary Art please. Sentence3: Can you help me find a train coming from cambridge leaving on thursday? Sentence4: How many tickets please? Sentence5: I want to arrive by 21:30 if possible. Sentence6: Yes I have many options. What time would you like to leave or arrive by? Sentence7: Train TR3255 is arriving at 21:06,is that okay for you? Sentence8: Thanks for using our service today, glad I was able to assist you. Hope you have a great day. Sentence9: That could work for me. Sentence10: thank you, that will be all. good bye. Sentence11: I will be going to Leichester. Sentence12: There are 202 trains departing Cambridge on Thursday. Where do you plan to head to that day? Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: I have four different swimming pools I can recommend. First, can you specify if you prefer the centre, east, or north area? Sentence2: I wish to go to a swimmingpool in Cambridge. Sentence3: There are 8 trains that would work on Wednesday. Do you have a departure time in mind? You could leave london as early as 07:39 or as late as 17:39. Sentence4: No, that will be everything. Goodbye. Sentence5: The address is gonville place and their phone number is 01223446100 Sentence6: The train booking is confirmed, number KJ1FLZL5 is your confirmation number. The fee is 16.6 GBP. Anything else I can help you with? Sentence7: Thank you for contacting Cambridge TownInfo Centre! Have a great day! Sentence8: Thanks. I also need to check on trains. I need to travel on Wednesday. Sentence9: I don't care about the departure time so please give me the ID and price of any one of those trains. Sentence10: Okay, the trainID is TR7020 and the price is 16.60 pounds. Sentence11: I need to leave london liverpool street and be in cambridge by 21:00. Sentence12: There are many trains fitting your criteria. Can you give me departure site, destination, and time preferences? Sentence13: I would like to book that train. Thank You Sentence14: Can you tell me the address and phone number for the one in the center of town? Question: Who has spoken the sentence 9? (A) User (B) System
[EX A]:
Answer: (B) System