You will be given a definition of a task first, then some input of the task.
You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: I'll be leaving from stansted airport and heading to cambridge. I need to get there by 19:30. Sentence2: No problem. We have 404 such entries. Where will you be departing from and going to? Sentence3: Is that in the north? It sounds like what I'm looking for if it's in that area. Sentence4: Certainly, the train ID is TR5433 and it departs at 18:24. The total travel time is 28 minutes. Can I help with anything else? Sentence5: The latest train you can take is the 18:24 train out of stansted, which arrives in cambridge at 18:52. Would you like took book a seat? Sentence6: I have 4 Guesthouses in the North area. They each are 4 stars, include FREE parking, and WIFI. Would you like me to book one? Sentence7: Actually, I'd like the hotel to include free parking if possible, but it doesn't need to have free wifi. I'd like to stay on the north end of town. Sentence8: Yes, I need of for seven people starting today and lasting five nights. Sentence9: Would you like to stay at the worth house? It's a guesthouse in the north, in the cheap price range, has 4 stars, wifi and parking. Sentence10: I am also looking for a hotel. I would like it to be a four star that includes wi-fi. Sentence11: Yes, I was wondering if you could assist me with finding a train for Thursday. Sentence12: No, but could you give me the train ID, departure time, and travel time of that train? Sentence13: Goodbye, have a good day. Sentence14: We have 21 hotels of that type. Is there a location or price range you would prefer? Sentence15: The Acorn guesthouse is able to accommodate you. Your reference number is 7RVELIR8 . Sentence16: Thanks for you're help! That'll be all. Question: Who has spoken the sentence 10? (A) User (B) System
Output:
Answer: (A) User