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

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
Answer: (B) System

Sentence1: Thank you for using this system Sentence2: There are several cheap restaurants located in the centre part of town. Sentence3: I am looking for a cheap restaurant. Sentence4: Yes, La Raza serves Spanish food. Would you like their phone number? Sentence5: Do any serve spanish food? Sentence6: La Raza is located at 4-6 Rose Crescent, their postcode is C.B 2, 3 L.L Sentence7: Thank you, goodbye. Sentence8: No, I would like the address and the post code please. Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User

Sentence1: Can I have the address please? Sentence2: Certainly. The number is 01223 352500. Can I assist you any further? Sentence3: Yes. How about a restaurant serving british food? Sentence4: unfortunately there are no restaurants that suits you. do you want to try something else? Sentence5: Fitzbillies restaurant serves British food, is located in the center of town and is in the expensive price range. Sentence6: No, that was it. Thank you. Sentence7: May I have the phone number, please? Sentence8: fitzbillies restaurant is located at 51 Trumpington Street City Centre. Can I help you with anything else? Sentence9: Can you find me an expensive restaurant that serves steakhouse food? Sentence10: No it doesn't matter Sentence11: Thanks, have a nice day. Sentence12: I've found several British restaurants in the expensive price range. Does the area of town matter to you? Question: Who has spoken the sentence 1? (A) User (B) System

Answer: (B) System