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

[EX Q]: Sentence1: You pick the area as I don't have a preference. Sentence2: I found swimmingpools in the areas of east, north and centre. Which would you prefer? Sentence3: I am departing from stevenage on thursday. Sentence4: Parkside Pools is located at Gonville Place. Is there anything else you would like to know? Sentence5: Parkside Pools is a great place located in the centre, would you like more information? Sentence6: Yes please. Get me the address Sentence7: The TR9547 gets into Cambridge from Stevenage at 20:43. Will that work? Sentence8: Have a great day! Sentence9: Yes, I just needed info for now. Thanks for your help. Goodbye. Sentence10: I need a train, on Thursday. Arriving by 2145. Sentence11: Where will you be departing from? Sentence12: i just want a place to go with a swimming pool. Question: Who has spoken the sentence 9? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: How about TR9382? Sentence2: I would like to leave on Sunday. Sentence3: I think that'll work. I need to reserve two seats, can you help me with that? Sentence4: Booking was successful, the total fee is 7.04 GBP payable at the station. Reference number is : 6NJA0V8R . Sentence5: You're very welcome. Have a great day. Sentence6: Well I need to leave after 14:45, so if it is after that time that'll work. Sentence7: Thank you. That's all I need for now! Sentence8: Hi. I'm looking for a train from ely to cambridge, if there is one. Sentence9: TR9823 will leave at 15:35, how does that sound? Sentence10: Okay, what day do you want to leave? Question: Who has spoken the sentence 5? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Do you have anything in the east? Sentence2: OK, I'm all set here. Thanks for your help. Sentence3: You can change any other criteria, but the price range should be the same as the city centre north b and b. Please try again. Sentence4: Unfortunately the booking was unsuccessful, would you like to try another hotel? Sentence5: The city centre north b and b meets your criteria. Do you want to make a reservation? Sentence6: Nothing else is available on the cheap side. Something else perhaps? I am sorry. Sentence7: Booking was successful at worth house. Reference number is : E2KQ4G5L . Sentence8: The address is 152 chesterton road. Sentence9: There is nothing in the east with zero stars and free parking. Do you want to change the star rating or other criteria? Sentence10: Yes, I have two guesthouses that fit that criteria. Would you like to stay in the north or centre? Sentence11: Yes, I would like to make a reservation on Saturday for 6 people and we will be staying for 2 nights. Sentence12: Yes i would like something in the same pricerange. Sentence13: No can you please check in the north instead then? Sentence14: That's great. Thanks. Do you have their address? Sentence15: Hello! I'm looking for a place to stay with free parking and zero stars. Sentence16: Enjoy your stay at the worth house. Have a great day. Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]:
Answer: (B) System