You will be given a definition of a task first, then an example. Follow the example to solve a new instance 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 need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
Solution: Answer: (A) User
Why? The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

New input: Sentence1: You're welcome. Please let us know if there is anything else we can help with. Sentence2: It doesn't matter what time I leave, just so I arrive by 09:45. Sentence3: Train TR2547 arrives at Stansted Airport Thursday at 8:08. Travel time is 28 minutes, and you would leave at 7:40. Can I book it for you? Sentence4: Could you tell me your intended destination please? Sentence5: I have four different trains that would get you to Stansted Airport by 9:45 on Thursday. What time would you like to leave? Sentence6: No that won't be necessary. Thank you for the information. Sentence7: How about TR7966? It leaves at 05:40? Sentence8: I am looking for a train. I need to leave Cambridge and I would like to arrive by 09:45. Sentence9: Sure. can i just get the travel time and departure time please Sentence10: I need to get to the Stansted Airport on Thursday. Question: Who has spoken the sentence 2? (A) User (B) System
Solution:
Answer: (A) User