Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: No, can you just let me know the travel time for this trip? Sentence2: I will be traveling on Thursday, and departing from Stevenage. Sentence3: I am looking for a train that goes to Cambridge around 10:45 Sentence4: There are 3 trains that match your search. Do you want to book one? Sentence5: What day will you be traveling? Sentence6: The travel time from Stevenage to Cambridge is 49 minutes. Sentence7: Thank you, goodbye! Sentence8: Ok thanks. I'll have to get back to you on how many tickets. Have a great day. Question: Who has spoken the sentence 2? (A) User (B) System
Output:
Answer: (A) User