You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Example Input: Sentence1: Are there any with a 5 star rating? Sentence2: I'm looking for a place to stay with free wifi. Can you help me find something moderately priced? Sentence3: You are booked at the acorn guest house. Reference number is ROCCFCM6 . Sentence4: Thank you so much, that is all I need. Sentence5: Unfortunately, none of them have a 5 star rating. Sentence6: Are there any with a 4 star rating? Sentence7: We have plenty of moderately priced options with free WiFi. Do you have any additional preferences? Sentence8: Oh yes, several. Are there any addition preferences on those? Sentence9: Great, enjoy your stay. Bye. Sentence10: Nope, any 4-star moderate place with wifi will be fine. Could you book a room starting Saturday for 3 nights, 5 people? Question: Who has spoken the sentence 6? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Unfortunately, I am not seeing any 4 star hotels that are moderately priced in the centre. We could try a cheaper hotel or a guesthouse? Sentence2: Sure do. Their address is fulbourn, postcode cb15dh. Phone number is 01223295264, and entrance is free. It's a museum on the Eastside. Sentence3: Nevermind. Do you have info on gallery at twelve a high street. Sentence4: Thank you very much for your help, have a nice day. Sentence5: Thank you, enjoy your stay in cambridge. Sentence6: Of course. We have so many attractions! What part of town will you be in? Sentence7: I will be visiting Cambridge soon and can't wait to see some of your local attractions. I do need your help with some information. Sentence8: I'm sorry, but there are no cheap hotels in the center of town, either. The only cheap hotel is on the west side. Sentence9: How about in the cheap price range? Sentence10: I have two options. Would you prefer a hotel or a guesthouse? Sentence11: I need a 4 star room in the centre please. Sentence12: A hotel in the moderate price range. Thank you! Question: Who has spoken the sentence 4? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Sure thing you're all set. Your reference number is 8P12NA4L . Can I help you with anything else today? Sentence2: I would like to book a table at this restaurant for 5 people at 15:00 on monday. Sentence3: I'm looking for a particular restaurant called michaelhouse cafe. Sentence4: Absolutely. Enjoy your trip! Sentence5: Yes, I am also looking for a hotel. I think it is called the Cambridge belfry. Sentence6: The cambridge belfry is a cheap hotel in the west area. Do you want to book any rooms? Sentence7: Michaelhouse Cafe is an expensive restaurant in the center of town. It serves european food and is located at St. Michael's Church Trinity Street City Centre. Sentence8: The postcode is cb236bw and star rating is 4. I can only tell you that it is in the cheap price range. Sentence9: First can you give me the postcode, star rating, and a more specific price range? Sentence10: Well thank you very much. I think that's all I need for now! Question: Who has spoken the sentence 5? (A) User (B) System
Example Output:
Answer: (B) System