You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
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Question: Sentence1: Sure, it's at granta place, Mill lane. Sentence2: Sure it's a moderately priced 4 star guesthouse in the east. Would you like me to book it? Sentence3: From all of us at Cambridge, we hope you enjoy your stay! Farewell! Sentence4: Thank you so much for all of your help today. I am all set. Bye. Sentence5: Could you tell me their address as well please? Sentence6: Thanks! I'm also looking for information on the A & B Guesthouse. What can you tell me about that place? Sentence7: Yes, the post code for the A and B Guest House is cb12dp. Is there anything else I can do for you? Sentence8: What is the phone number for scudamores punting co? Sentence9: Okay, which would you like to leave from? Sentence10: The phone number for Scudamores Punting Co is 01223359750. Is there anything else I can help you with today? Sentence11: Your taxi is booked. The car is a yellow honda and the contact number is 07826111038 Sentence12: May I have the postcode? Sentence13: I would like to leave the hotel by 7:00. Also, can you give me the contact number and car type once you have booked it? Sentence14: I also need a taxi to go between the two places. Question: Who has spoken the sentence 4? (A) User (B) System

Answer: Answer: (A) User

Question: Sentence1: How about the Ashley Hotel? It is on the north side of town, has 2 stars, free wifi and parking, and is moderately priced. Sentence2: Is that a 2 star hotel? Sentence3: Are there any available for less than $200 a night? Sentence4: Unfortunately, the rooms are unavailable for that day and time. Can I try a shorter stay for you or possibly a different day? Sentence5: Of course! The reference number is QZYSOMAW and the address is 74 chesterton road. May I help with anything else? Sentence6: No, it has 4 stars Sentence7: Can you make a reservation for 6 people for 3 nights starting on Wednesday. Sentence8: Yes, I was able to successfully book you for two nights. Is there anything else you need? Sentence9: The only 2 star hotels are in the north or the east. Do you mind staying in one of those areas? Sentence10: Nope, that's all I need. Thanks for your help! Sentence11: Can I have the reference number and address please? Sentence12: How about for 2 nights? Sentence13: We're glad to be of service, and please do not hesitate to contact us if you need more help while you're in Cambridge! Sentence14: Yes that would be fine with me Sentence15: There are several. Alexander Bed and Breakfast is cheap and is in the Centre. Would you like me to book that? Sentence16: Let's try a hotel type with free parking in the centre of town with a star of 2. Sentence17: Are there any rooms available in hotels with free parking? Sentence18: how about for 2 nights? Sentence19: Yes. Do you have a preference for the hotel's area or price range? Sentence20: I'm sorry. I have no 2 star hotels in the center of town. However, I have some in other parts of town. Would you care to modify your search criteria? Question: Who has spoken the sentence 10? (A) User (B) System

Answer: Answer: (A) User

Question: Sentence1: Yes! There are quite a few. Do you have a preference for type of food? Sentence2: You are most welcome! Sentence3: Yes, can you provide me the address of Hakka? Sentence4: I don't need a reservation right now, but I am looking for a train. I need to leave Wednesday after 15:45. Sentence5: That's all actually. Thank you for the assistance. Sentence6: There are two, one is called Hakka and another is the Hotpot. Would you like a reservation at one of these restaurants? Sentence7: I am looking to leave on wednesday after 15:45 and should depart from cambridge and arrive at london kings cross. Sentence8: Is there a good restaurant on the north end of town? Sentence9: Is there anything else I can help you with today? Sentence10: The soonest after 15:45 is TR3843, departing Cambridge at 17:00 and arriving in London at Kings Cross at 17:51. Will that meet your needs? Sentence11: Yes that would be fine. thank you Sentence12: I have many options for you. Where are you going and from where are you departing? Sentence13: An expensive chinese restaurant please located in the north Sentence14: It's Milton Road Chesterton, postcode cb41jy. Phone number is 01223568988. If you'll tell me how many people and when you'll be dining, I'll be happy to book it for you. Question: Who has spoken the sentence 7? (A) User (B) System

Answer:
Answer: (B) System