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

Sentence1: Help me find a moderate priced british food place please. Sentence2: Your reference number is T790DS3O and the total fee is 35.2 GBP, which is payable at the station. Sentence3: We will have to start over now. Sentence4: Not at this time. Could I just get the phone number? Sentence5: Yes please book it for 8 people Sentence6: Yes, restaurant one seven is located in the centre. Sentence7: Perfect, could you just tell me their phone number? Sentence8: you are welcome any time Sentence9: I also need a train from Ely to Cambridge on Tuesday to arrive by 12:30. Sentence10: I will work on booking this and be right back with you. Sentence11: No, that should be all. thank you very much. Sentence12: Is that restaurant in the Centre? Sentence13: TR3412 leaves at 11:35 and arrives at 11:52. Will this one work for you? Sentence14: Yes, sorry. Tuesday, leaving Ely and getting to Cambridge by 11:30. Sentence15: Okay, well I suppose this is goodbye then. Sentence16: The phone number is 01223337766 Sentence17: Actually, I need to change my reservation. I need the train to arrive by 11:30 instead. Sentence18: Thank you for using the Cambridge TownInfo centre. Goodbye Sentence19: I need it for 8, as I said. Do you have the reference number? Sentence20: Your updated train is now TR4669. Your new reference number is 2T4NNGG9 . The total fee remains the same. The train departs at 09:35 and arrives at 09:52. Anything else? Sentence21: Their phone number is 01223337766. Do you need assistance with anything else? Sentence22: restaurant one seven is a nice place. Do you want to book? Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User

Sentence1: I'm sorry the full address isn't listed would you like there postcode and phone number? Sentence2: They are on Wheeler street and phone is 01223357851 Sentence3: No but I also need a hotel called university arms hotel. Sentence4: It is a theatre located in the centre on wheeler street. Sentence5: Can you provide their full address please? Sentence6: I'd like to visit an attraction called the Cambridge Corn Exchange. What can you tell me about it? Sentence7: I was able to find university arms hotel located at regent street. Would you like me to book a room for you? Sentence8: Before we do that, what type of attraction is the Cambridge Corn Exchange? I don't know too much about it. Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User

Sentence1: Great! Can I have the postcode please? Sentence2: That is all I needed thank you for your help. Sentence3: Yes I can, your reference number for that booking is IIRB479M . Is there anything else I can do? Sentence4: Can you reserve a table for just 1 person on Saturday at 13:45? Sentence5: The postcode is cb17gx. Do you need help with anything else? Sentence6: Byard Art is a great place. They are located at 14 King's Parade and their number is 01223464646. Their is no entrance fee. Sentence7: Yes, there's a restaurant called The Lucky Star and is on Cambridge Leisure Park Clifton Way Cherry Hinton. Their phone number is 01223244277. Sentence8: Actually, can we see if there are any theaters to visit in the area? Sentence9: i'm also looking for some places to go in town. Sentence10: Is this a theatre or museum? Sentence11: Can you help me find a cheap restaurant in the south that serves Chinese? Sentence12: yes, there's a theater called The Junction on Clifton Way. Sentence13: I can make a reservation for you. Do you know what day? Sentence14: Glad to have been of help. We're here if you need anything else. Thanks for using the Cambridge TownInfo centre. Have a great day. Sentence15: Thanks so much for your help do you know if I need to make a reservation? Sentence16: Byard Art is a museum. Is there anything else I can help you with today? Question: Who has spoken the sentence 10? (A) User (B) System
Answer: (A) User