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

[EX Q]: Sentence1: Yes, how about a museum in the centre? Sentence2: What is their address? Sentence3: I want a cheap restaurant that serves polynesian food. Sentence4: How about italian? Sentence5: I need it to arrive at the restaurant by the booked time. Sentence6: You are booked and your reservation number is Q7YR4YLN Sentence7: Looking now La Raza has a few openings, how many people? Do you have a date and time in mind? Sentence8: The castle galleries is a free museum in that area. Sentence9: I am afraid I have none matching your request. Would you like to try another type of food or area? Sentence10: Hi, I'm looking for entertainment attractions that are available in the centre. Sentence11: Can you help me get a taxi? Sentence12: There are no entertainment attraction located in the centre. Would you like me to check different areas? Sentence13: Of course. I need the time of travel, departure location and the destination. Sentence14: great, i have 69 options for you in that area! Sentence15: The la raza serves spanish food. Its cheap and in the centre. Would you like me to book you a table there? Sentence16: Your taxi is a blue skoda under the contact number 07244814493. Is there anything else? Sentence17: Can you try spanish food instead? Sentence18: You're welcome, glad I could help. Sentence19: Yes! Please do. Sentence20: I'd like it for Saturday at 17:45, just one person. Sentence21: That is all thanks. Sentence22: I am also looking for a restaurant in the same area as the attraction. Sentence23: There's nothing that serves spanish food in the cheap price range in the centre of town? Sentence24: unit su43, grande arcade, saint andrews street anything else i can help you with? Question: Who has spoken the sentence 9? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: No thank you. You have helped tremendously. Sentence2: What is the address and postcode, please? Sentence3: Can you help me? I was in a car accident dispute. Sentence4: The Parkside Police Station's phone number is 01223358966 Sentence5: you are welcome Sentence6: The address is Parkside and the postcode is CB11JG. Can I help you with anything else? Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: Thank you so much for your help today. Sentence2: Yes, I would like to stay in the west please. Sentence3: I am also looking for help finding a train to stansted airport for Sunday departing from Cambridge. Sentence4: There is one guesthouse and one hotel that fits your criteria. Both have free internet and parking. Do you have a preference? Sentence5: I have found 10 hotels that are cheap in the area. Is there a certain part of the city you would like to stay in? Sentence6: The Cambridge Belfry meets your criteria. Would you like to make a booking? Sentence7: Are they 3 star hotels? Sentence8: train TR1262 will arrive at 08:08 would you like me to book seats? Sentence9: Yes, we'll need tickets for everyone in the party. Sentence10: I would like a hotel please. Sentence11: okay, reference # isN5S2FRHG, 32.32 GHP is payable at the station Sentence12: Yes please for 4 people for 2 nights starting on friday. Sentence13: Yes they are both 4 stars. Do you have a preference of hotel or guesthouse? Sentence14: You're welcome. Have a great day! Sentence15: Sure. What time would you like to travel? Sentence16: success! confirmation number is 44URFTUC . Can I help you find anything else? Sentence17: it should arrive by 09:00 Sentence18: I need a cheap place to stay please. Question: Who has spoken the sentence 17? (A) User (B) System
[EX A]:
Answer: (B) System