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

Input: Consider Input: Sentence1: Let's try for saturday, but if that is not available then tuesday would be fine Sentence2: I was able to book you for Saturday. Sentence3: That will be all, thanks again. Sentence4: I would like to leave after 21:30. Sentence5: What day will you be arriving? Sentence6: I found Alexander bed and breakfast . Do you want to make a reservation? Sentence7: Yes bookit for the same group of people 4 nights. Sentence8: thanks can I get a reference number please? Sentence9: Yes, i am looking to book a room at the alexander bed and breakfast. Sentence10: You are welcome enjoy Sentence11: Would you like to leave or arrive by a certain time? Sentence12: Yes, whichever train has seats available for 7 people. Sentence13: I'm looking for a train that goes to Cambridge on Saturday Sentence14: I will be departing from broxbourne. Sentence15: We have 3 options that meet your criteria. All depart within an hour of each other starting at 21:32. Would you like me to book one of them for you? Sentence16: Your booking was successful, the total fee is 100.24 GBP payable at the station. The train departs at 21:32. Your reference# is UZFW2TAQ . Is there anything else? Sentence17: Where will you be departing from? Sentence18: Your reference number is XVE54KKH . Is there anything else I can do for you? Question: Who has spoken the sentence 5? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: i also want a taxi to commute between the two places Sentence2: That's it for now. Thank you for you patient help. Goodbye. Sentence3: book a hotel for 7 people and 2 nights starting from wednesday Sentence4: I have 24 options available. Do you have a specific area in mind? Sentence5: It will be picking me up from the hotel. I'll need the contact number and car type, please? Sentence6: First let's pick one of the 14 guesthouses and then I'll book your room! Sentence7: Absolutely! Your Booking was successful. Reference number is : 7ZCFV2O4 . Is there anything else you need? Sentence8: I need a guesthouse to stay while I'm in town. I don't care if it has free parking or not. Do you have something I could get? Sentence9: We have five parks available. Do you have an area that you would prefer? Sentence10: Yes, I would recommend acorn guest house. Sentence11: I should be able to help you with that. Are you traveling to the Botanic Gardens or from? And what time do you want the taxi for? Sentence12: I'd like someplace in the center, please. Sentence13: There are 14 guest house with internet and moderate price what area would you like Sentence14: Sounds good. There are a lot to chose from, is there one that you specifically recommend? Sentence15: And where would you like the taxi to pick you up? Sentence16: That sounds fine can you book for seven people for two nights starting Wednesday? I'm also looking for a park to visit. Sentence17: You are booked for a white audi with the contact number 07387814664. May I help with anything else, like a restaurant? Sentence18: Yeah, any time I was happy to help. Sentence19: I'm also looking for a park to go to while I'm in town. Sentence20: i want to leave the hotel by 01:15 Sentence21: The Cambridge University Botanic Gardens is located in the centre. It's on Bateman Street. The entrance fee is 4 pounds. Can I help you with something else? Sentence22: No specific area but i do need wifi and a moderate priced guesthouse please. Question: Who has spoken the sentence 4? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: Thanks for the info. Can you also tell me if there are any trains on Saturday that leave after 11:15? Sentence2: Certainly, there are 134, do you have an arrival time in mind? Sentence3: I am going to stansted airport and need to leave on Saturday. Sentence4: To help narrow it down, what is your destination and what day will you be leaving? Sentence5: Thanks, Are there trains that depart from Cambridge? Sentence6: Can you tell me what the entrance fee is for Ballare? I also need the address. Sentence7: Thank you! That's all I need today. I appreciate your help! Sentence8: I am looking for a nightclub in the town centre. Sentence9: TR3373 meets your criteria and arrives by 12:08. Would you like to book it? Sentence10: Great the reference number is 7LIC35YA . Sentence11: You are quite welcome! Have a safe flight! Sentence12: Yes I need to book for 8 people and get the reference number please. Sentence13: There are five nightclubs I can show you. How about the Ballare at lion yard? Sentence14: Yes, there are trains that leave after 11:15. Sentence15: address is heidelberg gardens, lion yard. entrance fee is 5 pounds Sentence16: No, but I need to leave after 11:15. Question: Who has spoken the sentence 8? (A) User (B) System


Output: Answer: (A) User