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

[EX Q]: Sentence1: We have many hotels that fit your needs, is there a specific area you're looking at? Sentence2: We have TR2475 that leaves cambridge at 07:50 and arrives ely by 08:07. Will that work for you? Sentence3: It's in the north area and they do have parking. Sentence4: Thanks, that's all i need! Sentence5: Are you sure you don't need me to book your hotel for you? Sentence6: Do they have free parking? What area is it located? Sentence7: Acorn guest house fits your needs. Would you like me to book your stay? Sentence8: something that has free wifi Sentence9: I need to find a guesthouse with a moderate price range. Any places to stay? Sentence10: That has been booked. Reference number is : FSUGM4NQ . Sentence11: Can you help with transit information? I need to go to ely by train on Sunday and need to arrive by 09:00 departing cambridge. Sentence12: Yes, that sounds perfect. Can you purchase 7 tickets for me please? Sentence13: Excellent. I also need a train to ely. Sentence14: No problem. Good bye! Question: Who has spoken the sentence 10? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: You are booked for a black skoda. Is there anything else? Sentence2: Thank you for your help Sentence3: Could you give me the contact number for the skoda, please. Sentence4: I'd be happy to book that for you, where are you departing from? Sentence5: No, that is it. Goodbye. Sentence6: Booked car type : black skoda Contact number : 07129813049 Sentence7: I would like a taxi to limehouse. I need to arrive by 7:15. Sentence8: You're very welcome. Do you need any further assistance? Sentence9: Thanks for using our services. Sentence10: I am leaving from nusha. Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: I want to go the Tandoori Palace. Sentence2: Glad to be of service, Goodbye. Sentence3: Is there anything else I can help you with? Sentence4: Thank you so much you've been very helpful. Sentence5: I would be happy to book that, first I will need to know your destination. Sentence6: Can you book me a taxi to arrive by 23:30? Oh, and I am departing from wandlebury country park. Sentence7: 07903665107 is the contact number, I have you in a black honda. Sentence8: No, that will be all. Goodbye. Question: Who has spoken the sentence 4? (A) User (B) System
[EX A]:
Answer: (A) User