Given the task definition and input, reply with output. You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: Thank you but I also need a train that is going to leicester and should depart from cambridge Sentence2: Okay. I have a booking and reference number for you. It is YE2KMQB2 . Sentence3: Yes please give me the reference number Sentence4: Just for myself, please. Sentence5: Actually, I won't need you to book tickets. But can I please get the price and travel time for TR1755? Sentence6: Hi, I'm looking for a moderate restaurant in the centre. What would you recommend? Sentence7: I found few restaurant that serve Asian and British food which food you prefer? Sentence8: Okay, I have booked you a table at Yippee Noodle Bar. Your reference number is OWLN59MN . Sentence9: ok that would work go ahead and book that Sentence10: Thank you for using our service have a great day. Sentence11: How many tickets would you need? Sentence12: I will be traveling on Thursday and I need the train to arrive by 12:00. Sentence13: Lets go with Asian. Can you book a table for 7 at 12:00 on Wednesday? Sentence14: Sure thing - what day are you traveling, and at what time? Sentence15: Oops, I actually didn't want tickets just yet, but I guess I'm stuck with them! Thanks for your help anyway, totally my fault. Sentence16: How many seats will you need? Sentence17: The travel time is 105 minutes and costs 37.80 pounds. Sentence18: TR1755 arrives in leicester at 11:06. Would you like tickets on that train? Question: Who has spoken the sentence 10? (A) User (B) System
Answer: (A) User