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

[Q]: Sentence1: Can you book me 6 seats on that train? Sentence2: Hello, trains depart every 2 hours on the :21's, what day are you hoping to travel? Sentence3: I want to leave on sunday from Cambridge. Sentence4: There are 5 such trains. Do you have a preferred arrival time? Sentence5: You're still not done! Give me the train ID for the train. Sentence6: Sounds good to me. Book it for six people at 10:30 on Sunday. Out of curiousity... how long is that train trip going to take? Sentence7: Ok, the 15:21 going to Stevange on sunday would be great. I'll need the price and train ID as well please. Sentence8: The 15:21 train to Stevenage will take approximately 49 minutes to reach its destination. Is there anything else i can help you with? Sentence9: The prices is 10.24 pounds and the trainID is TR4550. Would you like me to book that for you? Sentence10: Great - I do still need to know the travel time for that train, though. The 15:21 train to stevenage? Sentence11: Yes, can you also let me know the price for that train? Sentence12: I would like to arrive in time for lunch, preferably around 11:00 Sentence13: Thank you for reminding me, your train ID Number will be: TR4550. Sentence14: I want to try food in Cambridge and need to get a train to stevenage that leaves after 14:45. Sentence15: The price is 10.24 pounds. Sentence16: There are 110 restaurants to choose from. What area are you looking to dine in, and what kind of food are you hungry for? Sentence17: Sorry, there aren't any expensive welsh restaurants, but there's an indian place named curry garden. Sentence18: I don't have any for that time frame, every train is running after 12:00. I can book you for one that leaves at 15:21. Is that alright? Sentence19: Find expensive welsh food, or if not welsh, indian, for 6 people at 10:30 Sunday. I need a reference number, please. Sentence20: Your total for 6 tickets is 61.44 GBP, payable at the station, for reference number T0KZHAA5 . Sentence21: Booking was successful. The table will be reserved for 15 minutes Reference number is : MUEIRYK2 . And the train will arrive at 16:10. Sentence22: Not quite yet, could you tell me what the travel time is for that trip? I also am looking for a restaurant to dine at. Question: Who has spoken the sentence 6? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: Booked car type : white toyota Contact number : 07264671188 All set. What else can I help with today? Sentence2: looking for places to go in town and be in the South Sentence3: Yes, please book it. Sentence4: Thank you. I'd also like to book a taxi. I need to leave the hotel by 10:15. Sentence5: When will you start your stay? Sentence6: What's the entrance fee? Sentence7: What type of attraction are you looking for? Sentence8: The attraction should be in the south. Sentence9: I think I got everything I need thanks to you! Sentence10: Unfortunately, Nusha has not provided any information on entrance fees. I can seek other options, if you'd like. Sentence11: I need it for Thursday night, for four nights, for 4 people. I'll also need a taxi by 10:15. I need the car type and contact number please. Sentence12: Booking was successful. Reference number is : Y3CFU8WN . Sentence13: There is a hotel called Cityroomz in centre located at Sleeperz Hotel, station road. Would you like me to book it for you? Sentence14: how about nusha? it's located in the south. Sentence15: then find me a particular hotel called cityroomz Sentence16: Well, you are very welcome. I hope you have a great time! Question: Who has spoken the sentence 13? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: That is all I need today, thank you. Sentence2: Of course, there are many trains on that route. What day would you like to travel, and is there a time you would like to arrive by? Sentence3: No need to book it for me. I can do that. But can you tell me the travel time in minutes? Sentence4: 36 MINUTES Sentence5: I would like to travel on Saturday, arriving at 8:00. Sentence6: Sure the phone number is 01223335511. It is on silver street and the entrance fee is 2.50 pounds. Sentence7: I only have one train that will meet your needs. Train TR6163 will depart at 05:29 and arrive by 06:07. Would you like me to book you a ticket? Sentence8: The postcode is cb39et and it is a college. Is there anything else I could help you with? Sentence9: I am also looking for a attraction called queens' college, can you get me information on that? Sentence10: I am planning a trip to Cambridge on a train. I want to leave form bishops stortford...can you help me with that? Sentence11: Great. And what is the postcode? And attraction type? Sentence12: You're welcome. I hope you have a great day! Goodbye. Question: Who has spoken the sentence 5? (A) User (B) System
[A]:
Answer: (B) System