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

[EX Q]: Sentence1: I prefer a gueshouse. Sentence2: I'm glad I was able to help you today! Thank you for contacting Cambridge TownInfo centre. Enjoy your trip! Goodbye! Sentence3: There are many places to stay that offer free parking. Do you prefer a guesthouse or hotel? Sentence4: No, but can you help me find a restaurant? I think it's called Meghna. Sentence5: Ahhh.. great, thanks! That's all I needed! Sentence6: Yes, they are at 154 chesterton road and can be reached by phone at 01223353888. Would you like me to book you? Sentence7: Great can you tell me the star rating of the hotel as well? Sentence8: Yes, that is a moderate priced indian restaruant in the west. Sentence9: Acorn Guesthouse has a star rating of 4. Would you prefer other options or would you like for me to book you? Sentence10: That's it! Can you give me the phone number and area, please? Sentence11: Can I please have their address and phone number? Sentence12: The acorn guest house would fit your needs would you like me to make a reservation for you Sentence13: Meghina's phone number is 01223727410. They are located in the west. Sentence14: Place to stay the night, with free parking and it doesn't need free wifi. Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: You pick the area as I don't have a preference. Sentence2: I found swimmingpools in the areas of east, north and centre. Which would you prefer? Sentence3: I am departing from stevenage on thursday. Sentence4: Parkside Pools is located at Gonville Place. Is there anything else you would like to know? Sentence5: Parkside Pools is a great place located in the centre, would you like more information? Sentence6: Yes please. Get me the address Sentence7: The TR9547 gets into Cambridge from Stevenage at 20:43. Will that work? Sentence8: Have a great day! Sentence9: Yes, I just needed info for now. Thanks for your help. Goodbye. Sentence10: I need a train, on Thursday. Arriving by 2145. Sentence11: Where will you be departing from? Sentence12: i just want a place to go with a swimming pool. Question: Who has spoken the sentence 9? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: OK thank you. Good bye. Sentence2: What is the address? Sentence3: Thank you for using our system. Good bye Sentence4: 17 Magdalene Street City Centre Sentence5: I'm sorry, we do not have any Swiss restaurants available. Do you want to try a different type of food? Sentence6: I would like to try vietnamese food Sentence7: Thanh Binh is a good vietnamese restaurant in the cheap price range Sentence8: I would like a restaurant that serves swiss food Question: Who has spoken the sentence 6? (A) User (B) System
[EX A]:
Answer: (A) User