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

Ex Input:
Sentence1: Yes, that sounds great! Can I get it for 8 people for 3 nights please, we'll be arriving Tuesday. Sentence2: Great. Are there any trains that go directly from Cambridge to Norwich? Sentence3: Thank you for using our service. Have a good day. Goodbye. Sentence4: Yes, there are several. The trip time is 79 minutes and the cost is generally 17.60 pounds. Can I tell you anything else? Sentence5: I am looking for a guesthouse please. Sentence6: Would you like to try the Alpha-Milton Guest House located in the North? Sentence7: No, that's everything I needed. Sentence8: Any area as fine, as long as it has 3-star accommodations. Sentence9: How about for 2 days? If it's available will you please book and provide a reference number? Sentence10: I'm sorry, the hotel is unable to accommodate your party. Can you arrive on a different day or stay for a different number of days? Sentence11: In what area would you like it to be? Sentence12: I have successfully booked it for 2 days, and your reference number is OUKN0U42 . Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Sounds good. Have a good day. Sentence2: Thank you very much. I will contact them now. Sentence3: Can you give me the contact info for the nearest police station? Sentence4: Sure! The Parkside Police Station is located at Parkside, Cambridge and can be reached at 01223358966. Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: thanks i want to get its entry fee and address Sentence2: You're welcome, let me know if I can assist with anything else. Sentence3: It is a nightclub in centre at 1 wheeler street. Phone is 01223842725. Do you need any more information? Sentence4: Yes, there is a 5 pound entrance fee for the club. Sentence5: I would like an expensive 3-star hotel. Sentence6: The address was just given to you and the phone is 01223842725. Sentence7: The Lensfield Hotel does have free parking. I can assist you with that reservation. Sentence8: Hi! I'm looking for an attraction named Kambar. Sentence9: Thank you so much. I appreciate your help with this. Sentence10: I am also interested in a place to stay, that includes free parking. Sentence11: That is all, thank you for all your help. Sentence12: Just to confirm, does the Lensfield have free parking? If so I'd like to book for 6 people, 3 nights, starting on thursday. Sentence13: in my opinion, the lensfield is much more updated than the gonville. do you need me to book a room? Sentence14: Do you have an area or price range in mind? Sentence15: What do you recommend? Sentence16: Yes, can you please book a room with the details I already provided. Sentence17: Gonville hotel is in the centre, the lensfield is in the south, any preferences? Sentence18: Your room has been booked. Your reference number is CAFW873C . Sentence19: Is there a entrance fee? Sentence20: No problem. Is there anything else I can help you with today? Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:

Answer: (B) System