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: And where will you be picked up from? Sentence2: Your taxi has been booked. Look for a blue Toyota. The contact number is 07852954476. Anything else? Sentence3: I need to be picked up from The Cambridge Corn Exchange. Sentence4: I need to be dropped off at bridge guest house. Sentence5: Can you help me out with a taxi booking? Sentence6: You are very welcome. Please let us know if we can be of further assistance. Sentence7: No that's all thank you Goodbye Sentence8: Sure! when would you like to arrive? Sentence9: Okay, no problem at all. What are your pickup and dropoff locations? Sentence10: I need to leave after 18:15. Question: Who has spoken the sentence 2? (A) User (B) System
Output:
Answer: (A) User