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

Q: Sentence1: How many tickets will you be needing today? Sentence2: That is all, thanks. Sentence3: I booked 4 tickets on train TR4187, your reference number is LXZWA3Q8 . A total of 66.4 GBP is payable at the station, can I help you with anything else? Sentence4: All right, the TR4187 leaves at 13:59 and arrives at 15:27. Would you like me to book that for you? Sentence5: I have some moderate priced hotels in the north and center. Do you have a location preference? Sentence6: Booking was successful. Reference number is : P39PYOK0 . Can I help you with anything else? Sentence7: Where will you be traveling from, and what day would you like to travel? Sentence8: Yes, please book it for me. Sentence9: I would like a moderate price hotel in Cambridge. Sentence10: I also need info on a train. It should arrive in london liverpool street by 16:30. Sentence11: I need 4 tickets, and the price and train ID Sentence12: I will be departing Cambridge on Friday. Sentence13: Either one is fine. I need to book it for 5 nights on Wednesday. There are 4 people. Sentence14: There are two 2 star hotels in the north part of town. Ashley Hotel and Lovell Lodge. Both include free internet and parking. Do you have a preference? Sentence15: I will work on that and be back with you in a moment. Sentence16: Sure. What is your price range and what side of town will you be interested in? Sentence17: Hi, I am planning a trip and could use some advice on a place to stay. Sentence18: I'm not concerned about the area but it doesn't need to include internet. Sentence19: You're welcome, let me know if I can assist with anything else. Sentence20: Let me know when your break is over. I'll need a reference number please. Question: Who has spoken the sentence 9? (A) User (B) System

A: Answer: (B) System
****
Q: Sentence1: You have been very helpful. Thank you. goodbye. Sentence2: Yes I certainly can! Your reservation was successful and your booking reference is 5F3KBH78 . Sentence3: Can you make reservations for 6 at 14:30 on Thursday? Sentence4: The J restaurant serves cheap asian oriental food in the centre of town. Their phone number is 01223307581. The address is 86 Regent Street City Centre. Sentence5: Can you tell me about the J Restaurant? Sentence6: Glad to help. Have a great day and enjoy your meal. Good bye. Question: Who has spoken the sentence 4? (A) User (B) System

A: Answer: (A) User
****
Q: Sentence1: Sounds great. I'd like to make a reservation for Saturday. Sentence2: Thank you for calling. Please let us know if we can be of assistance in the future. Have a great trip! Goodbye. Sentence3: I would also like a moderately priced place to stay. Sentence4: free wifi and 4 stars please Sentence5: May I please have information about a train to Stevenage, leaving on Tuesday? Sentence6: Yes, please. Sentence7: Your booking was successful. The reference number is 5KPWKTTX . Can I help with anything else today? Sentence8: Do you have a certain time you would like to leave after or arrive by? Sentence9: Certainly. Is Cambridge your departure point? Sentence10: Any that leave after 08:00 would be fine. I'll need a booking for 5 people, please. Sentence11: You are booked for the TR4546 train. Your reference number is NALGEDH3 and 64 GPB will be due at the station. Is there anything else? Sentence12: Is there a certain area that you perfer? Maybe free parking or wifi? Sentence13: I would be happy to book this for you. Will you be booking for 5 people? Sentence14: I have the guesthouse called Avalon available. It has 4 stars and is moderately priced. It's in the north. Would you like me to book this? Sentence15: Yes for 5 people and 3 nights. Sentence16: No, thank you, that's all I need. Thanks for your help! Question: Who has spoken the sentence 3? (A) User (B) System

A:
Answer: (B) System
****