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: 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: We have nine expensive dining establishments on the west side. Cuisines offered are Thai, Indian, European, and British. Do you have a preference? Sentence2: Thank you. Can you please give me the reference number? Sentence3: The reference number is 5WHDPGHW .. Is there anything else I can assist you with? Sentence4: Okay I booked a table for 4 at 15:00 on Saturday at the Graffiti, an expensive British restaurant in the west area of town. Sentence5: I am interested at eating at an expensive place in the west part of town. Sentence6: No that will be all. Thank you so much for all of your help! Sentence7: Excellent. Have a good rest of your day! Sentence8: No I don't have a preference. I want to book for four people at 15:00 on Saturday. Question: Who has spoken the sentence 5? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: How about the same day at 12:30? If that works, please send the reference number. Sentence2: Thank you very much for your help. Sentence3: Okay! Thank you for calling. Sentence4: Unfortunately we cannot book at that time, could you choose another day or time please? Sentence5: I need the train to leave on Sunday. Sentence6: Okay, I got one leaving at 5:17 and another at 7:17, do you have a preference? Sentence7: No, that was everything, thank you! Sentence8: I want to book the reservation the same day as my train at 13:30 for 8 people. Sentence9: I can book you on train number TR4543. It departs at 07:17 and arrives in Cambridge at 8:08. Sentence10: I'd like to depart from London kings cross Sentence11: 7:17 please. I would like to book for 8 people and i need the reference number. I would also like to book at Bangkok City restaurant. Sentence12: There are 231 trains that arrive in Cambridge before 8:45, can you tell me where you want to depart from to narrow it down? Sentence13: okay is there anything else i can help you with? Sentence14: I would like a ticket to a train that arrives in Cambridge before 8:45am. Sentence15: No, my mistake. Thank you. Sentence16: It works. The reference number is YRIP8V3C . Anything else I can do for you? Sentence17: You would like an additional reservation at Bangkok city restaurant? Sentence18: i would also like to book a reservation at bangkok city. Sentence19: Good day then. Sentence20: I've booked the train. Your reference number is YRIP8V3C . For what day and time would you like the restaurant reservation? Question: Who has spoken the sentence 1? (A) User (B) System


Output: Answer: (B) System