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

Example Input: Sentence1: 07426688661 is the contact number, I have you in a grey Toyota. Sentence2: Great. Can you tell me where you will be traveling to and from? Sentence3: I need to get there by 11:45. Sentence4: That's perfect, thanks! Sentence5: I need to book a taxi please. Sentence6: You are welcome. Thank you for calling us. Goodbye. Sentence7: Can I help you with anything else? Sentence8: No, that's everything. Goodbye. Sentence9: I want to go from wandlebury country park to huntingdon marriott hotel Sentence10: Okay, I will need some more information from you. What time would you like to leave? Question: Who has spoken the sentence 8? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Please check again for a college in any area. Sentence2: Hmm, I think we are getting confused on what I need. I really need to find a hotel with 4 stars in the east. Or a guesthouse will do also. Sentence3: I'm sorry, we do not have any college listings. Sentence4: I think allenbell would suit you well. Would you like more information? Sentence5: Gonville and Caius college is quite interesting. Their post code is cb21ta. Their address is trinity street. Sentence6: Thanks, I will need a taxi from the guesthouse to the attraction. I'd like to leave the guesthouse by 24:30. Sentence7: Could I get the postcode, phone number and whether they have free parking? Sentence8: There are 4 museums in the east. Any preferences? Sentence9: There's Christ's College on Saint Andrew's Street. It's in the centre and free. Are you interested? Sentence10: Yes. Can I get the postcode? Sentence11: The Allenbell's postcode is cb13js. Their phone number is 01223210353 and yes they do have free parking. Would you like to book this one? Sentence12: The centre is fine and free would be great! Sentence13: there are no colleges in the east, can i look somewhere else? Sentence14: A majority of our colleges are in the centre, but not all of them have free admission, are you looking for one with no entrance fee? Sentence15: Thanks. I also need an attraction to visit in the college category. Any suggestions? Sentence16: Yes I would like to go to a college regardless of the area. Sentence17: Thank you very much. Sentence18: I need a place to stay. I would like a 4 star place in the east area. Sentence19: Yes, I'd like a place that includes free wifi and it should be a hotel. Sentence20: In the west I have two 4-star hotels - the cheap Cambridge Belfry and the expensive Huntingdon Marriott. Sentence21: No, it would not. What do you have in the west area? Sentence22: Okay, what about Museums in the east? Sentence23: I'm afraid all of our 4-star accommodations in the east are guesthouses. Would one of those suit you? Sentence24: Okay great, have a good night! Sentence25: Alright, got you a grey Toyota taxi to pick you up from the Allenbell at 24:30. Contact number is 07330473463. Anything else I can do for you? Sentence26: Sure we have 6 places, do you have any other preferences? Question: Who has spoken the sentence 5? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I'd like some help finding a train leaving peterborough on tuesday. Sentence2: I have train TR1674 leaving at 10:48 and arriving at 11:38. Would you like to book tickets? Sentence3: OK, is it going to Cambridge? Can I have the reference number please? Sentence4: Unfortunately, there are no trains that leave after 10:15. Sentence5: Okay. Your train booking was successful. You'll owe 16.5 which can be paid at the station. The reference number is X58GNQ74 . Sentence6: I have it right here Sentence7: Okay what are the available train times? Sentence8: Leave after 10:15, please. Sentence9: The address is 138 perne road. Would you like to book a room? Sentence10: I need a train from Peterborough to Cambridge on Tuesday, leaving after 10:15. Sentence11: Have a nice day. Sentence12: there seems to be a break down in communication. Please restate the departure and arrival locations and the day and time. Sentence13: Absolutely, do you want to leave or arrive by a certain time? Sentence14: it is 138 perne road. Sentence15: i have booked you one leaving at 10.19. Sentence16: Can you look up a hotel called Carolina bed and breakfast? Sentence17: No, I just need the address. Thank you. Sentence18: I need to book for one person, I will need the reference number. Also, I need to book a hotel called Caroline Bed and Breakfast, I need the address. Sentence19: Well, thats great. That means you should be able to give me the address Sentence20: Thank you, have a wonderful day. Let us know if we can help in any way. Question: Who has spoken the sentence 4? (A) User (B) System
Example Output:
Answer: (A) User