Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Okay, you are booked at the bridge guest house for 1 night (Saturday). Your reference number is NVYYU4ML . Can I help with anything else? Sentence2: Thanks so much, I can't wait. Bye. Sentence3: 3 people. Sentence4: I found 5 guesthouses for you. What part of the towns do you prefer to stay? Sentence5: I do not have that hotel at that time, should I try for a shorter stay? Sentence6: Don't mention it. I hope you guys have a blast. Sentence7: All right, I can make a reservation at the Bridge Guest House if you tell me how many people are in your group. Sentence8: Can you find me a place to stay that is moderately priced and includes free parking? Sentence9: The area doesn't matter, I just need to make sure I have a place to stay for 4 nights starting Saturday. Sentence10: Any area would be fine. But do any of the guesthouses have a 3 star rating? Sentence11: Yes. Does it matter what part of town? There is one on the south, one on the north, and one on the west. Sentence12: How about just 1 night? Question: Who has spoken the sentence 7? (A) User (B) System
Output:
Answer: (B) System