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

Sentence1: Have a good day! Sentence2: No thank you, that is all. Sentence3: I am looking for a train to London Kings Cross that departs after 08:15. Sentence4: The TR2000 leaves cambridge going to london kings cross on friday at 09:00. It arrives in london kings cross at 09:51. How does that sound? Sentence5: Yes. What do you have available? Sentence6: Are you departing from cambridge station? Sentence7: I'll be travelling on a Wednesday. Sentence8: That's great. Please book me two tickets. Sentence9: The booking was successful and the fee is 47.2 GBP payable at the station. Reference number is E2N0JHSY . May I assist you with anything else today. Sentence10: What day would you like to travel? Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System

Sentence1: I have two restaurants that meet your needs, Graffiti and Travellers Rest. Would you like to make a reservation at one of those? Sentence2: Yes, I need to book a table for five people at 17:15 for this Thursday. Sentence3: Thank you so much. Have a nice day. Bye. Sentence4: A reservation at 16:15 was successful at Graffiti. Your reference number is VCCP7L4M . Is there anything else I can help you with today? Sentence5: You're welcome, have a good meal. Sentence6: Will you check 16:15? Sentence7: Are there any expensive British restaurants in town? Sentence8: There are 57 restaurants that match your specifications. Do you want anything more specific? Sentence9: Yes, I'd like to find one in the west side of town. Sentence10: I am unable to book a restaurant at that time on Thursday. Is there another day or time slot I can check for you? Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System

Sentence1: i'm sorry, someone entered the incorrect info. i can actually get you there by 10:08 on the TR2755 train. Sentence2: Can you help me find a train leaving by 10:30 going to stansted airport? Sentence3: If it is the only thing you have than I suppose I have no other choice, so yes. Can I get the reference number as well? Sentence4: Yes could you please book this train for me and send me the reference number. Sentence5: What day do you perfre to leave ? Sentence6: Sure! They are at Cambridge Leisure Park, Clifton Way, and their postcode is CB17DY. Can I help you with anything else? Sentence7: I only have a 10:40 on Saturday. Is that going to work for you? Sentence8: Cambridge Leisure Park, Clifton Way, and their postcode is CB17DY. Sentence9: Yes I am sorry this is the only option I have. Sentence10: Unfortunately there aren't any boating places in the south part of town? Would you like to try another area? Sentence11: I prefer to leave on Saturday from Cambridge. Sentence12: Yes, help find a place to go in the south part? Say, boating? Sentence13: I'm sorry. To which park are you referring? Sentence14: Thanks very much for your help today. Sentence15: There are two boat options in the centre, and one each in the north and east. What would your preference be? Sentence16: Tell me about other entertaiment in the south Sentence17: maybe the address to the park Sentence18: I have heard nice things about Tenpin. Can I please have their address? Sentence19: You are booked, the total fee is 8.08 GBP payable at the station .Reference number is : CPRIO59Y, can I help with anything else? Sentence20: This train would have you arriving at 11:08 and is 8.08 pounds per ticket. Would you like for me to book this for you? Sentence21: It will arrive by 10:40 or will leave then? I need to arrive by 10:30. Sentence22: I have two listings for entertainment, nusha and tenpin. Sentence23: Thank you for calling Cambridge TownInfo centre! It was a pleasure to serve you, I hope you have a wonderful visit! Sentence24: Sorry, I had a lot of background noise and didn't hear the address for Tenpin. Thank you for your understanding. Sentence25: Any area would be fine. Sentence26: Okay we will be late. I need tickets for 8 people. Question: Who has spoken the sentence 13? (A) User (B) System

Answer: (B) System