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

Example Input: Sentence1: i'm sorry, i was unable to find a different hotel that matches your criteria and the availability that you wanted. Sentence2: Good day, thank you for using us, if you need anything else let is know. Sentence3: Yes, I'm looking for an expensive hotel to stay at, can you help me? Sentence4: Is there a specific side of town you'd like to be on? Sentence5: Yes. I would like to stay at University Arms for 2 people, for 2 nights, starting from Friday. Sentence6: Booking was unsuccessful. Would you like to find another hotel? Sentence7: That's too bad. Would you be able to find me a different hotel in the same price range? Sentence8: Are both hotels or are they guest houses? Sentence9: Hold on, I forgot about the Gonville Hotel I mentioned earlier. I got you a room. Your reference number is : B01G0B4W. Can I do anything else? Sentence10: Thats disappointing,thank you andgoodbye. Sentence11: Yes, I would like to stay in the city centre. Also, I would need free parking. Sentence12: That is all. Thank you. Sentence13: You have the Gonville Hotel or the University Arms to choose from. The Gonville is a 3 star hotel while the University Arms is 4 star. Sentence14: They are both hotels. Would you like for me to book one of these hotels for you? Question: Who has spoken the sentence 6? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Hi, I am looking for a place to swim at in cambridge. Sentence2: The Yippee Noodle Bar is moderately priced. Would you like me to book you a table? Sentence3: That is all I need. Thank you. Sentence4: Thanks, also in the centre of Cambridge, could you find me an asian oriental place to dine? Sentence5: There are 4 options for asian oriental which range from cheap to expensive. Do you have a preference? Sentence6: May I have their phone numbers and the entrance fee for the pools. Sentence7: Unfortunately it is not available at that time or party size. Sentence8: I prefer moderate cost Sentence9: There are four, including parkside pools located in the centre. Sentence10: The number for parkside pools is 01223446100. You will need to call them to see if there is an entrance fee. Sentence11: You now have a 16:45 reservation for 7 at Yippee Noodle Bar. Your reference number is BOZ3MSRO . Sentence12: Let's try 16:45 then. Sentence13: You are very welcome. Goodbye. Sentence14: Yes I would like to book a table for 7 on Monday at 17:45 Question: Who has spoken the sentence 10? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: I have you booked in at that time and day. Sentence2: I need a taxi to commute between the two places. Sentence3: The hotel to the restaurant please Sentence4: I'm also looking for an Italian restaurant, something in the same area as the hotel. Sentence5: Yes, please make it for the same group of people at 15:00 on the same day. Sentence6: Booking was successful. Reference number is : UN2JUAA4 . Sentence7: There are several guesthouses on the east side. I recommend the Allenbell. It's cheap, but it still gets 4 stars. Sentence8: I have one restaurant called Pizza Hut Fen Ditton and it is moderately priced. Would you like me to make a reservation? Sentence9: I also need a taxi Sentence10: I'm looking for a guesthouse where I can stay in east Cambridge. Sentence11: I can help with that! When and were would you need your taxi? Sentence12: Booking completed! Booked car type : red honda Contact number : 07823449934 You will arrive by 14:45. Sentence13: I was hoping for one that is in the moderate price range. Sentence14: Okay, so you'll be going to the restaurant from the hotel? Or to the hotel from the restaurant? and at what time, please? Sentence15: Yes, actually. Can you reserve a room for me for Friday for 3 guests? Sentence16: Okay I have the A and B guesthouse in the moderate price range. Would you like to book that? Sentence17: Thanks, that's all. Good bye. Sentence18: Thank you for contacting us have a nice day. Question: Who has spoken the sentence 16? (A) User (B) System
Example Output:
Answer: (A) User