Given the task definition and input, reply with output. You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: Nearest the hotel will be fine, I also need a cab after the restaurant Sentence2: We have ten such places. Sentence3: Ok, can you try for just 1 night please? Sentence4: You're welcome. Have a great day! Sentence5: I also am looking to dine out. Something European, and expensive. Sentence6: The north part of town please. Are there any guesthouses? Sentence7: I'm sorry, there isn't anything available for Sunday. Would a different day work? Sentence8: I would like to go back to the hotel after eating Sentence9: I am looking for a place to stay with free wifi. Sentence10: I would like to book the City Stop Restaurant for 4 people on Sunday at 15:45. I need the taxi to get from the hotel to the restaurant by that time. Sentence11: Try hotels in the north, then. Sentence12: I really need a room for 4 people on Sunday. Sentence13: I'm sorry there are no rooms available for that day at all. Would it be possible for your to book another day? Sentence14: I was able to get you in for one night at the Acorn Guest House, reference number 2T2WBNRP . Sorry it took so long. Is there anything else I can help with? Sentence15: City Stop Restaurant is the european restaurant in the north near your hotel. Where would you like the taxi to take you after the restaurant? Sentence16: I actually attempted all ten guesthouses with the booking instructions, all of them are unsuccesful. May need to try hotels or different area to move forward. Sentence17: I need a hotel on sunday for 4 people for 3 nights. I need the hotel to be a guesthouse with free wifi. Sentence18: That is all. Thank you! You were so helpful! Sentence19: I also need a taxi to commute between both places, and could you make sure it arrives at the restaurant by the booked time? Sentence20: I have booked a yellow lexus, contact number 07327430362. Can I help you with anything else? Sentence21: Certainly. What part of town are you wanting to stay in? Sentence22: I'm not sure we're going to be able to help you get a room on Sunday. Can you restate your requirements? Sentence23: Can you tell me what time you would like the taxi to pick you up from the restaurant? Sentence24: Okay your all set! Reference number is 9ABQGPGT . Anything else? Sentence25: How about just 1 night? Sentence26: The rooms are booked then , shall I try a shorter stay? Sentence27: Great! Could you book one of those for Sunday for me? Sentence28: There are 5 different expensive European restaurants in town. Is there a particular area you would like to eat in? Question: Who has spoken the sentence 8? (A) User (B) System
Answer: (A) User