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

Q: 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

A: Answer: (A) User
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Q: Sentence1: That was a successful booking, your reference number is T6C83P46 . Sentence2: Thank you so much! Sentence3: Not really. Anything would be fine. Sentence4: Yes, please. I'd like to book it for 6 people and 5 nights starting from monday. Sentence5: I'm not too concerned with location, but I would like it to include internet and have a 4 star rating please. Sentence6: Do you have a preferred location or price range? Sentence7: Yes, how about 3 nights? Sentence8: I recommend the Acorn Guest House. Would you like a room there? Sentence9: I'm looking for a guesthouse with free parking. Sentence10: Booking unsuccessful. Want to try for a shorter stay? Sentence11: There are 16 guesthouses that meet those requirements. Any preference on price range? Sentence12: You're so welcome. Thank you. Question: Who has spoken the sentence 1? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: I don't need to book, but could you tell me the total travel time, please? Sentence2: We don't have any moderately priced vegetarian places in town. Would you like to try a different type of food or a different price range? Sentence3: I have two - both in centre. The varsity Resturant and Bloomsbury. Would you like to book one? Sentence4: Please book for 6 people at 17:00 on Thursday. I'd also like the reference number. Sentence5: I'm also looking for a train. It should depart cambridge and go to stansted airport on thursday. Arrive by 17:00. Sentence6: Okay, what about international food? Sentence7: Unfortunately no, it has to be vegetarian, so i will have to make my own accommodations, thanks. Sentence8: No, I think that should be all for me today. Thank you so much, you've been very helpful! Sentence9: Your table was booked. Your reference number is MLK7FV6P . Sentence10: There are no vegetarian options in the area. Sentence11: I need to find a moderately priced vegetarian restaurant. Sentence12: You're welcome, have a great day! Sentence13: Would you be interested in TR9427? It arrives at 16:08 and departs at 15:40. Sentence14: That would be just fine. Sentence15: Sure thing. Travel time is 28 minutes. Can I help you with anything else? Sentence16: Make a reservation at Bloomsbury please, for Thursday night. Sentence17: How many tickets would you like to book? Sentence18: What time do you want to dine and how many people in your party? Question: Who has spoken the sentence 10? (A) User (B) System

A:
Answer: (A) User
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