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

Q: Sentence1: I cannot find any restaurants serving halal food. Do you have any other preferences? Sentence2: How about indian food? Sentence3: Their address is 71 Castle Street City Centre, their phone number is 01223 366668. Sentence4: Is Cocum located in the east part of town? Sentence5: No, the Cocum is located on the West part of town. Would you like me to find an Indian restaurant on the east part of town? Sentence6: I have 4 Indian restaurants showing for the east part of town. They are Curry Prince, Pipasha Resteraunt, Rajmahal, and Sitar Tandoori. Sentence7: Correct Sentence8: Hello, I am looking for a restaurant that serves halal food. Sentence9: The Cocum serves Indian food. Sentence10: What is their address and phone number? Question: Who has spoken the sentence 1? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: Thank you. I am also looking for a particular restaurant, it is called Charlie Chan. Can you provide me its address? Sentence2: I want able to book your room at the Gonville Hotel for you for the two nights. Your reference number for this is KYXT8TUS . Sentence3: I would like to book for four people for three nights beginning on Tuesday. Sentence4: No, thank you. That's all I needed today. Sentence5: Does the Gonville Hotel have guesthouse accommodations? Sentence6: Yes please book it for four people in 3 nights starting on Tuesday Sentence7: Before I book this hotel I just want to inform you that I have confirmed that it is not a guesthouse but a hotel. Would you still like me to book? Sentence8: No how about two nights? Sentence9: I believe so, yes. Sentence10: Unfortunately it can not be booked for 3 days. Did you want to get information about a different hotel instead? Sentence11: I am looking for a 3 star hotel with free parking in Cambridge. Sentence12: Absolutely. On what day, for how many people and how long is your stay? Sentence13: Certainly! The address for the Charlie Chan is Regent Street City Centre. Would you like me to book a reservation? Sentence14: Thanks for contacting Cambridge TownInfo centre. Let us know if you need anything else and have a great day! Sentence15: I found a handful of locations that might suit your interests. Would you care to check out the Gonville Hotel? It has everything you are looking for in accommodations. Sentence16: Can you book this hotel? Question: Who has spoken the sentence 5? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: Rosa's Bed and Breakfast is located at 53 Roseford Road. Would you like me to make a reservation for you? Sentence2: I'm hoping to find Rosa's Bed and Breakfast. Sentence3: Alexander bed and breakfast was able to be booked reference number is YUX0ZQKU . Sentence4: Yes. I need a reservation for 3 people for 2 nights starting from Saturday. Sentence5: Thank you for using our system today! Sentence6: Thanks, that's all I need. Have a nice day. Sentence7: Yes can you find a different hotel in the same price range? Sentence8: Yes, try another area, please. Sentence9: I am sorry there are no others in that price range in that area. Would another area be okay? Sentence10: The booking was unsuccessful. Is there another hotel you would like me to look into? Question: Who has spoken the sentence 4? (A) User (B) System

A:
Answer: (A) User
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