You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: That's all I need for now. I think I will wait to actually book a room. Thank you! Sentence2: I'm looking for a cheap hotel on the east side of the city. Can you recommend anything? Sentence3: Yes, the Allenbell has Internet. The address is 517a Coldham Lane and the postcode is cb13js. What are your travel details? Sentence4: The Allenbell is a good choice for you. Would you like more information on the Allenbell? Sentence5: Yes please. I'll need the address, postcode, and whether they have internet also. Sentence6: Yes, does it have free parking? Sentence7: Yes, it does! Would you like to book a room? Sentence8: You're quite welcome. Thanks for contacting the Cambridge TownInfo Centre and have a great day! Question: Who has spoken the sentence 4? (A) User (B) System
A:
Answer: (A) User