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

Ex Input:
Sentence1: Thank you. That's all I need. Sentence2: I was able to book it, reference number is T2SNWPJA Sentence3: Okay, the Mahal of Cambridge serves indian food and is located in the centre. Would you like me to make a reservation for you? Sentence4: I am happy to help, what was the name of the place? Sentence5: Its the huntingdon marriot. I'd like to book it for 8 people on 2 nights starting on wednesday, and I'll need a reference number. Sentence6: Can you help me look up a particular hotel that I have in mind? Sentence7: Great, thanks for that. I'm also looking for information about a restaurant called mahal of cambridge. Sentence8: Yes please book a table on Wednesday for 8 people at 17:15, I'll need a reference number. Sentence9: It was my pleasure to help. Have a wonderful night. Take care. Bye. Sentence10: Your booking was successful reference number is 1QVLVD25 Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
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

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: Hi! I am looking for a nice place for dinner. I would like something in the centre that's expensive. Sentence2: Sure the number is 01223314960 and the address is 98 king street. Sentence3: It was a pleasure to assist you. Take care. Good day. Sentence4: Thank you so much! I appreciate your time, that is all the help I need today. Sentence5: Sure. Can I have the phone number and address? Sentence6: You don't have any more specifications? Bedouin is quite nice, it serves african food. Would you like a table here? Sentence7: There are over 11 options for a museum. May I suggest broughton house gallery? Sentence8: I have many options for you. So what type of food are you in the mood for? Sentence9: Yes, please. I also want to find a museum in town. Sentence10: What would you suggest? I need a reservation for 6 at 12:00 on thursday and I'll need the reference number then too please. Question: Who has spoken the sentence 9? (A) User (B) System

Ex Output:
Answer: (B) System