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

Let me give you an example: 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
The answer to this example can be: Answer: (A) User
Here is 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

OK. solve this:
Sentence1: You are more than welcome. Enjoy the journey. Sentence2: There are many different options for trains departing Cambridge. What date and time do you need a train on? Sentence3: I'd like to book this train for 7 people, if possible. Sentence4: I need to get to Peterborough on Friday, and I have to leave after 12:30. Sentence5: You're all booked! 7 tickets from Cambridge to Peterborough at 12:34. Your reference number is I9UBCZW2 . Sentence6: I am looking for a train departing from Cambridge. Sentence7: The first train leaving after 12:30 is TR5650 and leaves at 12:34 to get you to Petersborough at 13:24. Would this suit your needs or would you like a later one? Sentence8: Great. Thanks for all your help. Question: Who has spoken the sentence 6? (A) User (B) System
Answer:
Answer: (A) User