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: How many nights would you like to stay? Sentence2: the gonville hotel is an expensive 3-star hotel in the centre part of town. they have free wifi and free parking. should i book it? Sentence3: I have that accommodation made for you, thank you! Sentence4: Hello. I am looking for a hotel called gonville hotel. Sentence5: Yes, I am looking for a booking for 8 people starting Saturday, please. Sentence6: two nights starting from Saturday for 8 people. Question: Who has spoken the sentence 4? (A) User (B) System
Output:
Answer: (A) User