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

Sentence1: Yes, can I get a table for 4 on saturday at 15:15? Sentence2: Hi! Can you help me find a particular restaurant? Sentence3: unfortunately they are filled up for that time would you like me to reserve another time or would you like to choose another restaurant. Sentence4: Of course, there are 110 restaurants in town. Would you like me to search by restaurant name? Sentence5: The Varsity Restaurant serves international food in the center of town. Do you want me to book it for you? Sentence6: Excellent. I'll need the reference number. Sentence7: Yes, I am looking for the Varsity Restaurant. Sentence8: Yes, I will book a table for 4 on Saturday at 15:15. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

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
Answer: (B) System

Sentence1: Yes please try that. Sentence2: Thank you for all your help. Sentence3: There is the Lensfield hotel which is 3 stars. Would you like me to make a reservation there? Sentence4: I'd like to book the Lensfield Hotel for 2 nights for 8 people starting from Wednesday. Sentence5: That would be great. Thank you. Sentence6: No thank you. I am looking for a hotel instead of a guesthouse. Sentence7: The gonville hotel is expensive and in the center of town. The lensfield hotel is also expensive, but it is in the south. Sentence8: You are welcome. Can I do anything else for you today? Sentence9: I need a three-star place to stay please. Sentence10: No that is all thank you very much. Sentence11: Yes. I'd like one in the same price range, please. Sentence12: I am sorry. I was unable to book that for you. Would you like me to try another hotel? Sentence13: Okay great. I was able to book the Gonville Hotel and your reference number is KWEQK0K1 . Sentence14: The hamilton lodge is a guesthouse in the north with a star rating of 3. Would you like to make a booking? Sentence15: No problem! Happy to help! Have a great day! Sentence16: I was not able to get you into the Lensfield but I can book you into the Gonville Hotel if you like. Question: Who has spoken the sentence 12? (A) User (B) System

Answer: (A) User