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 welcome. Can I help you with anything else? Sentence2: That is all. Thanks Sentence3: The post code is CB11JG. Sentence4: Thank you, what's the post code? Sentence5: Thank you for your help Sentence6: Cambridge, parkside police telephone number 01223358966. Sentence7: I need to get to the nearest police station, can you assist me? Sentence8: Okay. Have a good day and thanks for using our system. Question: Who has spoken the sentence 4? (A) User (B) System

A: Answer: (A) User
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Q: Sentence1: Limehouse for 1 person, 3 nights and starting on Sunday. Sentence2: Yes, of course. How many people are in your party? Sentence3: What area of town would be your preference? Sentence4: The range does not matter. Just the Indian place you think best. Sentence5: Yes what area are you looking to dine in? Sentence6: You're welcome, glad I could help. Sentence7: Is that a guesthouse? Sentence8: Thank you. I am also looking for a place to stay. It doesn't need internet and should be moderately priced. Sentence9: I would recommend the The Golden Curry. Would you like to make a reservation? Sentence10: That's okay. How about Indian? Sentence11: I sure can. What type of restaurant are you looking for? Sentence12: Thank you for all your help. Have a great day. Sentence13: I'm looking for Cuban food. Sentence14: It is a guesthouse. Would you still like me to book it? Sentence15: I don't have a preference. What would you recommend? Sentence16: There are no Cuban restaurants unfortunately. Sentence17: Yes, let's make it for 1 person at 19:45 on sunday. Sentence18: Yes, I love guesthouses when I travel alone. Can you book it for three nights please, starting on Sunday. Sentence19: I'd recommend the Limehouse, it's in the north and has 4 stars. Would you like me to book a reservation? Sentence20: Your reservation is successful, they'll hold the table for you for 15 minutes. Reference number is 6CVKLM3F . What else can I help you with? Sentence21: In the Centre as well please. Sentence22: I have 9 restaurants available. What price range would you prefer? Sentence23: Would you be so kind as to help me find a place to dine later? Sentence24: Booking was successful. Reference number is : 2VEHCBYQ . Question: Who has spoken the sentence 13? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: Goodbye Sentence2: Could you find me an Asian Oriental restaurant instead? Sentence3: Saigon City is an expinsive asian oriental restraunt in the north area of town. Sentence4: What is the phone number and area? Sentence5: I'm sorry, there are no expensive vegetarian restaurants in town. Can I help you find anything else? Sentence6: Thank you. Goodbye! Sentence7: I would like an expensive restaurant that serves vegetarian food Sentence8: The phone number for saigon city is 01223 356555 and is located in the north part of the town. Question: Who has spoken the sentence 2? (A) User (B) System

A:
Answer: (A) User
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