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

Ex Input:
Sentence1: kohinoor. i want to book a table for 2 people at 16:45 on Thursday Sentence2: Nope, I'm all finished for today. Thanks so much, goodbye now! Sentence3: Sure. Booking was successful. The table will be reserved for 15 minutes. Reference number is : X9AVZ8EI . Can I help with anything else today? Sentence4: Absolutely. What is the name of the restaraunt you are interested in? Sentence5: You are very welcome, bye! Sentence6: I need to find some information in a particular restaurant. Are you able to look up a specific place? Sentence7: I also need a Thursday train. Sentence8: Depart from Ely and would like to arrive by 13:00 in Cambridge. I need to book it for 2 people I also need a reference number. Thanks Sentence9: What location will you depart from and where are you headed? Sentence10: Sure thing, it's booked and your reference number is PWSVK4XQ . Do you need more help? Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: What day are you travelling? Sentence2: You are very welcome. Enjoy your day too. Bye. Sentence3: I'd like to book 3 tickets on the train arriving at 19:08, please. And would it be possible to have a reference number for the booking? Sentence4: I will need to leave from Cambridge if that's ok Sentence5: I have a train that arrives earlier at 18:08 and one that arrives just before your specified time at 19:08. Sentence6: Sure. Where will you be leaving from? Sentence7: I was wondering if you could help me in finding a train to the airport. Sentence8: OK, you have 3 tickets reserved on TR4447, departing Cambridge at 18:40, arriving Stansted at 19:08. Total fee is 30.29 GBP. Reference #5VRJSMSE . Will that be all today? Sentence9: Yes, it will. Thanks so much. Have a nice day. Sentence10: On Wednesday. I need the train to arrive by 19:15. Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Certainly, at what time? And how many will be in your party? Sentence2: I have the caffee uno located in the centre. Sentence3: I am looking for a place to stay Sentence4: I also need a restaurant that serves venetian food, in the expensive range. Sentence5: Sounds good. Can you book for Wednesday for 1 person, 4 nights? Sentence6: Thank you for using the Cambridge TownInfo centre. Have a great day. Sentence7: There are are lots of options. Is there a particular side of town you would like to stay in? Sentence8: I'm looking for something moderately priced in the west. Sentence9: Are they 4 star rated by chance? Sentence10: Awesome. Now please book me a taxi to the restaurant. Just please make sure I get their in time for my reservation Sentence11: Thank you so much for all your help. Have a great day. Sentence12: The booking was successful, your reference number is N7L47L69 . Sentence13: Your taxi has been booked. It will be a white Volvo and their contact number is 07236170295. Sentence14: I am sorry I have no listings for any with 4 stars. Sentence15: That's okay. Can you look for one that is expensive? Sentence16: Please to book a taxi I need departure location, arival location and travel time. Please provide that information. Sentence17: Great! I would like a reservation for Wednesday. Sentence18: Table for 1 at Caffe Uno is confirmed for Wednesday at 18:15. They will hold your table until 15 minutes after your reservation time. Your confirmation number is A3L9KQ34 . Sentence19: the huntingdon marriot hotel is great! Sentence20: I will be leaving the restaurant. Sentence21: I'm sorry, I can't find any restaurants matching your request. Would you like to try for a different type of cuisine perhaps? Sentence22: The same group of people discussed at 18:15 the same day. Sentence23: OK, then please try Italian restaurants. Sentence24: In order to book a taxi I need the travel time, departure location and the arrival location. Sentence25: Yes, I will be leaving from the hotel. I will need to arrive at the restaurant by 18:15 on Wednesday. Sentence26: Hobsons House is exactly what you're looking for. Would you like me to book it for you? Question: Who has spoken the sentence 19? (A) User (B) System

Ex Output:

Answer: (B) System