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

[Q]: Sentence1: I would recommend the cherry hinton water play on the east. It is also free admission. Sentence2: The duration is 163 mins.Do i need to book something for you? Sentence3: Thanks for the park info. In review, I don't see a train ID departing from Cambridge after 10:45. Do you have it? Sentence4: You're very welcome. Good day. Sentence5: I can help! What day are you looking to travel? Sentence6: I do not have a preference on a side of town. Sentence7: I need to leave on Thursday. Sentence8: I am looking for a park, can you help me with that? Sentence9: It is 163 minutes Sentence10: Okay Could I have their telephone number please? Sentence11: The phone number is 01223336265. Sentence12: Can you also tell me about some parks that I could visit? Sentence13: Their address is cherry hinton hall, cherry hinton road. Is there anything else I can help you with today? Sentence14: May I suggest cherry hinton water play, since it will be warm out. It's located in the east. Sentence15: I'm looking for a train going to Birmingham New Street. Sentence16: Is there an area you prefer? Sentence17: We've got about 19 trains for that route. Do you have a certain time you want to leave after or arrive by? Sentence18: Thanks. Can you please give me its address? Sentence19: Yes i'd also like parks I can go to. Sentence20: I think that is all I need today. Thank you for your help. Sentence21: I want to leave on Saturday and leave after 10:45. Could you give me the travel time? Sentence22: We have 5 great parks in town. My favorite is the Botanic Gardens in the center. It's well worth the 4-pound entrance fee. Sentence23: TR5669 leaves Cambridge at 11:01 and arrives at birmingham new street at 13:44. May I help with anything else? Sentence24: Sorry, how long is the travel time on the train? Question: Who has spoken the sentence 19? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Yes, of course. How many tickets would you like booked? Sentence2: Where are you traveling to and from? Sentence3: I have reserved your table. Your reference number is TRQQXOBM . Sentence4: Thank you. Sentence5: The train departs Cambridge at 13:06. Sentence6: No, I think that's all I need today. Thank you for your help! Sentence7: I am traveling from Cambridge to Peterborough. Sentence8: Thank you for using this system. Sentence9: We have many trains that fit your needs. The latest one you could take would be the TR9792 which would have you arriving at 13:56. Sentence10: I have 2, one in the south and one in the centre of town. Both are cheap and serve portuguese food. Sentence11: Thanks for that, I am also looking for a train that should arrive by 14:15 and should leave on Thursday. Sentence12: Okay great. enjoy your travel and thank you for calling. Sentence13: Could you book a reservation for me? I would like a reservation for 6 people at 14:00 on Wednesday. May I also have the reference number? Sentence14: I'm looking for a cheap restaurant that serves portugese food. Sentence15: Booking was successful for TR9792, the total fee is 99 GBP payable at the station. Your reference number is : BKXNWE2O . Do you need any further assistance? Sentence16: Thank you. Can you please book that train for me? Sentence17: I need 6 tickets. Sentence18: OK, thanks. When does that train depart? Question: Who has spoken the sentence 9? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Downing College is located in the centre, located on Regent Street. The postcode is cb21dq. The entrance fee is free. Is there anything else I can help you with? Sentence2: I can help with that! What day would you like to depart? Sentence3: You're all set. The fee will be 35.79 GBP and you can pay at the station. Your reference number is HZ0I8VML . Do you need anything else? Sentence4: Noone in the center appears to b open. You would be more than pleased with Jesus College which is and is beautiful. Sentence5: The TR5484 leaves at 18:01 and arrives by 19:01. Will that work for you? Sentence6: No that will be all. Thanks. Good bye. Sentence7: Hey! Trying to locate a train that goes to broxbourne and would leave right after 17:45. Sentence8: Yes, I need 2 tickets. Sentence9: Yes I also need information on downing college. Sentence10: I would like to leave on Tuesday please. Sentence11: Thanks for using our services today. Glad I was able to help have a nice day. Sentence12: I'm really interested in Downing College. Can you tell me the area, address, and fee for that one? Question: Who has spoken the sentence 3? (A) User (B) System
[A]:
Answer: (B) System