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

[EX Q]: Sentence1: looking for a train going to Cambridge. Sentence2: How about TR3350 that leaves at 05:17? Sentence3: you can book it. get me the reference number too Sentence4: I am leaving on Sunday and need to arrive by 13:00 Sentence5: Thank you for using our services. Sentence6: Thank you that is all I needed. Sentence7: W8YHJKSV is the reference number Sentence8: What day and time are you wanting to travel? Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: I recommend university arms hotel. it is rated 4 stars and is expensive. Their number is 01223351241. Sentence2: Can you help me find a place to eat serving british food in the moderate price range? Sentence3: I have several listings. Please provide the part of town you prefer so I can narrow it down. Sentence4: Ok, can you book a room for our group or are you expecting me to call them? Sentence5: Yes, I'd like a hotel in the same area. Sentence6: In the centre if possible Sentence7: can please provide more information to help us serve you better. Sentence8: No thank you that will be all for today Sentence9: I can book it for you. Sentence10: Yes please, could you book a table for 6 at 16:45 on Wednesday? Could i get a reference number too please? Sentence11: sure I can help you with that, when are you planning your stay? Sentence12: i dont mind any price. Sentence13: How about the oak bistro located at 6 lensfield road. The post code is cb21ab and phone number 01223323361. Can I book this for you? Sentence14: I actually need a moderate hotel in the centre. I don't need free parking. I will need the hotel booked for 6 people, 2 nights, on Wednesday, please. Sentence15: You have your choice of an expensive or moderate price range in that area, do you have a preference? Sentence16: Wednesday, for 2 nights. Sentence17: Ok. I have a table for 6 booked for you at the Oak Bistro. Your reference number is 9SGIM1SR . Is there anything else I could help with today? Sentence18: It needs to be close to my hotel and open late. Question: Who has spoken the sentence 5? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Okay, and what is your destination? Sentence2: You're welcome. Is there anything else I can do for you? Sentence3: I booked that taxi for you. The car is a red honda and the contact number is 07091293811. Sentence4: I would like to go to a Shanghai family restaurant please. Sentence5: I need a tax departing from Kambar and arriving by 23:15. Sentence6: No thank you, that is all I'll be needing for now. You were great, thank you again for helping me! Sentence7: Thank you for you assistance! Sentence8: Thank you for using this system! Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]:
Answer: (B) System