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

Sentence1: I'm going to saint johns chop house. Sentence2: What is your destination? Sentence3: The contact number is 07727071722. Is there anything else I can help you with? Sentence4: I can help you with that. When do you need to leave? Sentence5: No that is all Thank you goodbye. Sentence6: I need the contact number please. Sentence7: Your taxi is booked. Look for a yellow Volkswagen. Sentence8: Please call us anytime. Good Bye. Sentence9: I need to get a taxi out of holy trinity church. Sentence10: I need to arrive at the chop house by 22:30. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: i have booked that for you. your reference number is xhrx4ig7 . Sentence2: I'm confused. Should I look for a restaurant? Sentence3: Will you be leaving from Cambridge. Sentence4: That is helpful.Thanks Sentence5: Yes that will work. I need to book it for 2 people. Sentence6: yes i will be leaving from Cambridge. Sentence7: I would like to leave after 10:30. Sentence8: Okay the booking was successful. The reference number is HZ6B38TH . Sentence9: I'm also looking for a train. I'll be traveling back to Broxbourne on Friday. Sentence10: TR7372 leaves Cambridge at 11:01 and arrives at broxbourne by 12:01, would that train work for you? Sentence11: Yes please. It'll be for 4 nights. Sentence12: In order to book, can you tell me the number of guests, number of nights and the day of the week you want to start your stay? Sentence13: No, I'm sorry. That's all for now. Thank you for all your help. Sentence14: To be clear do you need me to fine you a place to eat? Sentence15: I would like to find out information about a hotel called Warkworth House. Sentence16: Can you find me a expensive cafe to eat at once i get off the train? Sentence17: I need to book it to 2 people for 4 nights starting from wednesday. Sentence18: Warkworth house is a guesthouse in the east area. It is moderate pricing with 4 stars. It offers free parking and internet. Would you like a reservation? Sentence19: What time would you like to leave around? Sentence20: I actually don't need a place to eat. Thank you, that is all. Sentence21: Thank you for using this service good bye Sentence22: What type of food would you like? Sentence23: Thank you. Can I get a reference number for the booking? Sentence24: I will go ahead and book your room. Question: Who has spoken the sentence 8? (A) User (B) System
Answer: (A) User

Sentence1: It doesn't matter what time I arrive Sentence2: Yes, can I get the train ID please? Sentence3: Great info. I need help with a train to london kings cross that leaves after 14:00. Sentence4: We will get you setup on train ID TR6203, arriving in london kings cross at 15:51. Sentence5: There are 5 trains travelling that route at that time. When do you want to arrive? Sentence6: Most colleges are located in the centre area, the entrace fee varies, anywhere from free to 2.50 pounds. Sentence7: Alright. Trains from cambridge to kings cross leave on the hour every other hour, starting at 15:00 and running to 23:00. Would you like to book a trip? Sentence8: Definitely. We have many attractions in Cambridge. What type of place are you looking for, or in which area of town? Sentence9: Great! I will go ahead and book it on my own but thanks so much for the information. That's all for today. Sentence10: It will be from cambridge on saturday. Sentence11: Hey, it's no problem at all! I hope you enjoy your time in Cambridge and please remember to contact the Cambridge TownInfo centre whenever you need to! Sentence12: I would like to visit a college. I'm not sure what area, where are most located? Also, please provide the entrance fee. Sentence13: What is your departure day and site? Sentence14: I am looking for information in Cambridge and looking for places to go in town. Can you assist? Question: Who has spoken the sentence 7? (A) User (B) System

Answer: (B) System