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

[Q]: Sentence1: Can you verify that the hospital has a transplant high dependency unit? Sentence2: Can you help me find a hospital nearby? Sentence3: Yes, it does. Here is the unit's phone number: 01223216811. Do you need any other information? Sentence4: I would like the address and phone number please. Sentence5: No that is everything. Thank You Sentence6: Sure, the phone number is 01223245151 and the address is Hills Rd, Cambridge. Sentence7: The nearest hospital to you is at Hills Rd, Cambridge. would you like their phone number? Sentence8: Alright sounds good. I hope everything is okay. Question: Who has spoken the sentence 4? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: i'm sorry, i was unable to find a different hotel that matches your criteria and the availability that you wanted. Sentence2: Good day, thank you for using us, if you need anything else let is know. Sentence3: Yes, I'm looking for an expensive hotel to stay at, can you help me? Sentence4: Is there a specific side of town you'd like to be on? Sentence5: Yes. I would like to stay at University Arms for 2 people, for 2 nights, starting from Friday. Sentence6: Booking was unsuccessful. Would you like to find another hotel? Sentence7: That's too bad. Would you be able to find me a different hotel in the same price range? Sentence8: Are both hotels or are they guest houses? Sentence9: Hold on, I forgot about the Gonville Hotel I mentioned earlier. I got you a room. Your reference number is : B01G0B4W. Can I do anything else? Sentence10: Thats disappointing,thank you andgoodbye. Sentence11: Yes, I would like to stay in the city centre. Also, I would need free parking. Sentence12: That is all. Thank you. Sentence13: You have the Gonville Hotel or the University Arms to choose from. The Gonville is a 3 star hotel while the University Arms is 4 star. Sentence14: They are both hotels. Would you like for me to book one of these hotels for you? Question: Who has spoken the sentence 6? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: Sure. TR0743 will be the train you want, and it has a travel time of 49 minutes. Sentence2: Booking was successful. Your reference number is OG3NRCWJ . Will that be all? Sentence3: Yes thank you. 2 nights for two people starting on monday. Sentence4: I also need a train going to Stevenage on Tuesday. Sentence5: And from where are you departing? Sentence6: Do you know which hotel or the area the hotel is in? Sentence7: Yes I have located the University Arms and it is located in the center. Would you like a booking? Sentence8: I am departing from cambridge. Can you please provide me with the train id and travel time. thank you. Sentence9: I'd like to leave after 11:45, please. Sentence10: University Arms Hotel. Sentence11: Excellent, thanks for all of your help! Sentence12: Have a great day! Sentence13: Ok, where you departing from and what time would you like to leave? Sentence14: I am looking for a particular hotel. Question: Who has spoken the sentence 3? (A) User (B) System
[A]:
Answer: (B) System