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

Sentence1: Let's go with the cheap one. I'll need a table for 7 on Sunday at 12:15 please. Sentence2: Can you try on saturday, 7 people, at 12:15 Sentence3: you're in luck I have two options for you. One is in the cheaper price range, the other is listed as moderately priced. Do you have a preference? Sentence4: Unfortunately the booking was not successful. Sentence5: Yes, you're booked for Saturday with reference number V54FG5X2 . The table will be reserved for 15 minutes. May I help with anything else? Sentence6: Thank you, goodbye! Sentence7: No, that's all I need. Thanks for your help! Sentence8: Yes I would like to find Spanish food in the center of town. Question: Who has spoken the sentence 7? (A) User (B) System
Answer: (B) System

Sentence1: Yes, free internet is included at The Cambridge Belfry. Sentence2: Great, I'd like to book at room at The Cambridge Belfry. Sentence3: The cambridge belfry matches those requirements. Sentence4: I can book your room now. Thank you so much Sentence5: I am looking for a 4 star hotel that has free parking. Sentence6: Does it have free internet? Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System

Sentence1: Yes if you can tell me where you will leaving from and what day and time? Sentence2: Thank you! Can you help me find a train to Norwich, please? Sentence3: Great. I'll call back if I need anything. Goodbye. Sentence4: No. I think that is all. Sentence5: It is a cheap Indian restaurant. Would you like to book a table? Sentence6: My pleasure. Have a great day. Goodbye. Sentence7: what kind of food do they serve and how expensive is it? Sentence8: I need the train to arrive by 21:00. Is there one at that time? Sentence9: I am now looking to dine at mahal of cambridge Sentence10: I am planning a trip in Cambridge Sentence11: Booking was successful, the total fee is 52.8 GBP payable at the station .Reference number is : 8L54O12B . Sentence12: No worries we are here if you need us, have a nice day. Sentence13: On what day would you like a reservation? Sentence14: I can help you find what you are looking for. Sentence15: yes book that for 3 people please Sentence16: Is there anything else I can assist you with today? Sentence17: Train 2662 leaves Cambridge at 21:36 and arrives in Norwich at 22:55. Would you like me to book a ticket for you? Sentence18: Come to think of it, I won't need a reservation. That will be all for today. Thanks for your help! Sentence19: Actually, I would like to book a table at that restaurant. Sentence20: I'll be leaving Cambridge on Monday at 9 PM. Sentence21: May I recommend the TR9246 train arriving at 20:55 Sentence22: Would you like more info or for me to book it? Question: Who has spoken the sentence 13? (A) User (B) System

Answer: (B) System