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: That is all I needed. Thank you so much! Sentence2: How many rooms would you like to book for that group? Sentence3: I'd like a train heading for Cambridge from Peterborough, please. Sentence4: I have your rooms booked. The reference number is 9wy58ojm . Can I help you with anything else? Sentence5: I will be traveling on Saturday. Sentence6: Uh, I thought I told you 8. Sentence7: You are quite welcome. Have a lovely stay! Goodbye! Sentence8: I would like to book it for the same group for 4 nights on Saturday as well. Sentence9: I have 8 seats reserved for you. Your reference number is O2j7w28g . Sentence10: The first train leaves peterborough at 05:19 the last leaves at 07:19 would you like tickets? Sentence11: I can help you with that. What kind of information did you need about the Gonville Hotel? Sentence12: Awesome. I'm also looking for the gonville hotel. Sentence13: Certainly! Did you have a travel day in mind? Sentence14: Yes, for 8 people please. Question: Who has spoken the sentence 8? (A) User (B) System
Output:
Answer: (A) User