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

Ex Input:
Sentence1: Can I get the travel time and price on the 5:52 one? Sentence2: Tenpin is an entertainment attraction in the south part of town their phone number is 08715501010, and address is cambridge leisure park, clifton way Sentence3: I will need more information to narrow down the results. What day would you like to depart on, and what area is your departure from? Sentence4: Ok, and I also want to find out about an attraction called Tenpin please. Sentence5: TR5348 leaves Ely at 5:35 and arrives in Cambridge by 5:52. The price for a ticket is 4.40 pounds and the ride's duration is 17 minutes. Sentence6: Great, thank you. Sentence7: Departing fro Ely on Wednesday and arriving by 09:30. Sentence8: I'd like train information for cambridge. Sentence9: Thank you so much for the information Sentence10: There are two trains. One arriving at 5:52 and one at 7:52. Would you like me to book one of these for you? Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: I am looking for Mediterranean food in the center of the city. Sentence2: I show 3 available. 2 are in the expensive range and 1 is cheap. May I book a table for you? Sentence3: Thanks for calling. You have a great day! Sentence4: I have booked you at the Shiraz Restaurant for 7 people Saturday at 15:45. Your table will be reserved for 15 minutes. Sentence5: I'd like the expensive range and I'd like to book a table for 7 people on Saturday at 15:45. Sentence6: Great. Thanks so much! Sentence7: Thank you so much. That is all I need today. Have a great evening. Sentence8: Sure. Your reference number is MSV3UPS2 . You will likely need it. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: Yes they have free internet. Sentence2: what type of hotel is it? Sentence3: Do they have internet? Sentence4: I'm interested in the mumford theatre. Sentence5: The aylesbray lodge is on 5 mowbray road. Would you like me to make you a reservation? Sentence6: I am also looking for a hotel called the Aylesbray Lodge guest house near by. Sentence7: Great. Thank you for all the information. I appreciate it. I think that's it for today. Thanks and goodbye. Sentence8: I certainly can. Is there a type of attraction that interests you? Sentence9: it is a guest house Sentence10: Glad to have helped. Sentence11: It's located at anglia ruskin enterprise, east road in the centre of town. The phone number is 08451962320 and the postcode is cb11pt. Do you need more help? Sentence12: I'm looking for a place to see, can you help? Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System