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

Sentence1: Please feel free to contact us again for further assistance. Good-bye. Sentence2: Great news! Your booking was successful and I have a reference number for you. It is PL4JEQ9A . Sentence3: Yes please I need a booking for 4 people and 2 nights starting from friday. Sentence4: How about a different hotel in the same price range? Sentence5: Can you find me a place to say in the centre that includes free wifi? Sentence6: I have the Cityroomz hotel which is in the moderate range with internet and no parking. Would you like to book this hotel? Sentence7: Are there any in the moderate price range? Sentence8: Thank you for your help. Sentence9: I can recommend the Alexander Bed and Breakfast. It is a guesthouse in the cheap price range. Sentence10: How about the el shaddai, they have free internet and free parking? Sentence11: Thank you very much. I will. Sentence12: You are very welcome. Please enjoy your stay. Sentence13: That on is not open then, shall I try another? Sentence14: That will be fine. Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System

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: I think that is all for now! Thanks again. Have a great day! Sentence2: Can you try booking it for 11:15? Sentence3: I have pulled up 3. How about anatolia, they are moderately priced. Sentence4: Thank you. You've been very helpful. Sentence5: That works for me. Go ahead and book it. Sentence6: Can I have the reference number please? Sentence7: Yes, it's 105 minutes total. Would you like anything else? Sentence8: Done - your reference number is GJ3062PE . The total fee is 37.79 GPB which you can pay at the station. Sentence9: Sounds great. Can I get their location and phone number? Sentence10: Can you make a reservation for 6 people at 12:15 on wednesday? Sentence11: If you are leaving from cambridge I can book you on TR1755 leaving at 09:21 and arriving at 11:06. Will this work for you? Sentence12: I am craving Turkish food in the centre. Is there a restaurant available? Sentence13: You're welcome. You have a great day as well! Sentence14: I was able to fulfill your request. You are booked at Anatolia on Wednesday at 11:15. The reservation is for 6 people. How else may I help you? Sentence15: Sure thing! It is located at 30 Bridge Street City Centre and the phone number is 01223362372 Sentence16: Can I get the travel time in minutes please? Sentence17: Will there be anything else you need? Sentence18: Yes, please. I need a train to Leicester on Thursday, please. I need to get there by 16:15. Sentence19: I am so sorry nothing available for any of the turkish restaurants for that day & time slot. Something else perhaps? Sentence20: The reference number is G7THDK3O . Is there anything else I can help you with. Question: Who has spoken the sentence 19? (A) User (B) System

Answer: (B) System