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

[Q]: Sentence1: Yes, of course. How many tickets would you like booked? Sentence2: Where are you traveling to and from? Sentence3: I have reserved your table. Your reference number is TRQQXOBM . Sentence4: Thank you. Sentence5: The train departs Cambridge at 13:06. Sentence6: No, I think that's all I need today. Thank you for your help! Sentence7: I am traveling from Cambridge to Peterborough. Sentence8: Thank you for using this system. Sentence9: We have many trains that fit your needs. The latest one you could take would be the TR9792 which would have you arriving at 13:56. Sentence10: I have 2, one in the south and one in the centre of town. Both are cheap and serve portuguese food. Sentence11: Thanks for that, I am also looking for a train that should arrive by 14:15 and should leave on Thursday. Sentence12: Okay great. enjoy your travel and thank you for calling. Sentence13: Could you book a reservation for me? I would like a reservation for 6 people at 14:00 on Wednesday. May I also have the reference number? Sentence14: I'm looking for a cheap restaurant that serves portugese food. Sentence15: Booking was successful for TR9792, the total fee is 99 GBP payable at the station. Your reference number is : BKXNWE2O . Do you need any further assistance? Sentence16: Thank you. Can you please book that train for me? Sentence17: I need 6 tickets. Sentence18: OK, thanks. When does that train depart? Question: Who has spoken the sentence 9? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: That's all I need for now. thank you very much. Sentence2: Addenbrookes Hospital. The contact number for the paediatric intensive care unit is 01223217715. Sentence3: Can I get the postcode as well? Sentence4: Where's the closest hospital with a paediatric intensive care unit? Sentence5: You are welcome! Have a great day! Sentence6: It looks like the Post Code is CB20QQ. Question: Who has spoken the sentence 5? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Do either of those have a 2-star rating? Sentence2: Have a great day! Sentence3: Yes, I've booked you for 1 night at the Ashley Hotel. Sentence4: Can you see if either of them are available for 2 nights for 5 people starting on Thursday, I have no preference for which one. Sentence5: Both of those hotels are completely booked up when trying to fit that criteria. Perhaps we can try different specifications? Sentence6: Great. Can I have the reference number please? Sentence7: Great, that's all I need. Thank you for your help. Sentence8: There are 2 hotels in the north part of town with parking. Would you like to book one of them? Sentence9: Yes, they both have a 2-star rating. Sentence10: Of course. The reference number is TPTBTVJ9 . Sentence11: Well, I'll have to see if I can shorten my stay then. Can you try for just 1 night? Sentence12: I need a hotel in the north that also has free parking. Question: Who has spoken the sentence 9? (A) User (B) System
[A]:
Answer: (B) System