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

[Q]: Sentence1: You're very welcome. Thank you and goodbye! Sentence2: The earliest train departs Leicester at 05:09 and arrives in Cambridge at 06:54. The cost is 37.80 pounds per ticket. Sentence3: That's all that I need. Sentence4: Any of those will work. Which one is your favorite and where is it located? Sentence5: I'll be departing from Leicester, headed to Cambridge. What do the prices look like? Sentence6: No problem. There are a lot of other options like boating, cinema, colleges, a concerthall, museums, nightclubs, a park, theatres and swimming pools. What are your interests? Sentence7: I also need a train on Wednesday, arriving by 19:00. Sentence8: I'm looking for something to do in the centre of town. Sentence9: Travel time is approximately 105 minutes. Sentence10: Would you like any more information on other attractions? Sentence11: I would really like it to be a attraction type. Sentence12: What is the travel time? Sentence13: Great! I found a lot of things that match what you're looking for. Do you like architecture? Sentence14: I can help you with that. What are the departure and destination cities you were looking for? Sentence15: No, that will be all. Thank You for all your help. Sentence16: I'd try the cambridge contemporary art museum, at 6 trinity street. Question: Who has spoken the sentence 13? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: Could you also get me a taxi between the two that leaves the hotel by 6:15? Sentence2: There are 11 guesthouses that fit your criteria. Do you have a preference of north, south or east? Sentence3: The address is saint andrew's street. Sentence4: the taxi is booked. it's going to be a yellow tesla. their phone number is 07606976296. Sentence5: The area doesn't matter. I'll go with whatever guesthouse you recommend. Please make my reservation for 3 people, 5 nights, starting Thursday. Thanks. Sentence6: Thanks. I don't need anything else. Sentence7: What is the postcode? Sentence8: I have you booked at archway house, the reference number is N8IRHQYO, any further questions? Sentence9: I'm also looking for a moderately priced guesthouse, one with a four star rating. If it doesn't have free parking, that's fine. Sentence10: Can I recommend christ's college? Sentence11: Yes could I have the address and postcode of the college please. Sentence12: i am glad i have been of help. good day Sentence13: Have a great one. Thanks again for your help. Goodbye. Sentence14: There are 79 attractions, Do you have an idea of the type you're looking for? Sentence15: I need information on places to go and see. Sentence16: Yes, I would like the type of college. I will need the address and postcode please. Sentence17: Thank you, I'm glad I could be of help. Goodbye. Sentence18: The postcode is cb23bu. Can I help you find anything else today? Question: Who has spoken the sentence 2? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: Thank you for that information. Sounds like a good place. Sentence2: It's going to be from the restaurant to the hotel. I want to leave the restaurant by 4:45. Can you tell me what type of car and contact number? Sentence3: Yes, can you tell me a little about a hotel called Rosa's Bed and Breakfast? Sentence4: Okay, that's Restaurant Two Two, located at 22 Chesterton Road Chesterton cb43ax. May I help you book a table? Sentence5: It is located at 53 roseford rd in the south area, rated 4 stars, they have internet and parking. The phone number is 01223512596. Sentence6: Hmm, no thank you. I will need a taxi though, can you help me with that? Sentence7: I've booked your taxi! A yellow Tesla will pick you up at the restaurant at 4:45, and the contact number is 07207525802. Sentence8: I'd like to eat at the one that's in the north. Sentence9: Is there anything else I can do to help you today? Sentence10: Great! Thank you very much! Sentence11: There are two located in town. The Restaurant Two Two, which is in the north, and the Cote, which is located in the centre. Would you like to book a table? Sentence12: What is the best french expensive restaurant in town? Sentence13: They can be reached at 01223351880. Can I help you with anything else? Sentence14: No, that is it. Thanks. Bye. Sentence15: Would you like me to make you a reservation? Sentence16: Alright! Thanks for contacting Cambridge TownInfo centre! Have a great day! Sentence17: What is the phone number for the restaurant? Sentence18: Where are you traveling to and from? Question: Who has spoken the sentence 9? (A) User (B) System
[A]:
Answer: (B) System