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 looking for a nice Italian restaurant. Nothing too expensive...like mid range? Sentence2: Nope, I think that will do it. Thank you so much! Sentence3: Okay, I have booked you at Pizza Express with reference number NK86VOJY . May I help with anything else? Sentence4: I don't care about the area. Could you book a table for 5 at 12:30 on Sunday? Sentence5: I have listing for 5 different ones,can I get what area you are looking for? Sentence6: You are welcome. Have a good day. Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: kohinoor. i want to book a table for 2 people at 16:45 on Thursday Sentence2: Nope, I'm all finished for today. Thanks so much, goodbye now! Sentence3: Sure. Booking was successful. The table will be reserved for 15 minutes. Reference number is : X9AVZ8EI . Can I help with anything else today? Sentence4: Absolutely. What is the name of the restaraunt you are interested in? Sentence5: You are very welcome, bye! Sentence6: I need to find some information in a particular restaurant. Are you able to look up a specific place? Sentence7: I also need a Thursday train. Sentence8: Depart from Ely and would like to arrive by 13:00 in Cambridge. I need to book it for 2 people I also need a reference number. Thanks Sentence9: What location will you depart from and where are you headed? Sentence10: Sure thing, it's booked and your reference number is PWSVK4XQ . Do you need more help? Question: Who has spoken the sentence 6? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: unfortunately i don't have anything that meets all those criteria. is there anything you'd like to change? Sentence2: Yes, I need internet and free parking. Sentence3: Yes, please. I would also like the reference number. Sentence4: Sure, we have many. Are you looking for anything else specifically? Sentence5: I'm looking for a guesthouse to stay at that has a 4 star rating. Can you help? Sentence6: There are no hotels that meet that criteria. Would you like to search for something else? Sentence7: A moderate price range. I need 2 nights beginning Monday and the reference number. Also looking for a train, same people same day as hotel and reference number as well. Sentence8: i need an expensive hotel in the north Sentence9: Yes, I would like to be in the north. Oh and I would like to be in the expensive price range. Sentence10: Would you like me to book it for you ? Sentence11: One more time let me know exactly what you need by looking at what you wrote down on your right, so we can book you. Sentence12: May I recommend the Acorn Guest House at 154 chesterton road. Would you like me to book a room for 1, for 2 nights starting Monday? Sentence13: To help narrow this down, can you tell me what area of town you'd like most? Sentence14: I prefer a guesthouse please. I only need it for myself for 2 nights starting from monday. Sentence15: Is there something else I may be able to help you with today? Sentence16: No I will figure something out Sentence17: There are 9 options. Do you prefer a guesthouse or hotel? Sentence18: I lied. I don't need free internet and parking. Question: Who has spoken the sentence 16? (A) User (B) System
[EX A]:
Answer: (A) User