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

Example Input: Sentence1: We have many hotels that fit your needs, is there a specific area you're looking at? Sentence2: We have TR2475 that leaves cambridge at 07:50 and arrives ely by 08:07. Will that work for you? Sentence3: It's in the north area and they do have parking. Sentence4: Thanks, that's all i need! Sentence5: Are you sure you don't need me to book your hotel for you? Sentence6: Do they have free parking? What area is it located? Sentence7: Acorn guest house fits your needs. Would you like me to book your stay? Sentence8: something that has free wifi Sentence9: I need to find a guesthouse with a moderate price range. Any places to stay? Sentence10: That has been booked. Reference number is : FSUGM4NQ . Sentence11: Can you help with transit information? I need to go to ely by train on Sunday and need to arrive by 09:00 departing cambridge. Sentence12: Yes, that sounds perfect. Can you purchase 7 tickets for me please? Sentence13: Excellent. I also need a train to ely. Sentence14: No problem. Good bye! Question: Who has spoken the sentence 10? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Let us know if you need anything else. Sentence2: Certainly, the address for Cityroomz is sleeperz hotel, station road postcode cb12tz. Is there anything else I can help you with? Sentence3: Great. Could you please tell me the entrance fee? Sentence4: im glad to have satisfied you Sentence5: I have 1 hotel and a 2 guesthouses available. Do you have a preference on the area or if it is a hotel or guesthouse? Sentence6: Thanks again. That's all I needed. Sentence7: There is no entrance fee. Sentence8: Cityroomz meets that description. Would you like to book it? Sentence9: May I please have the address and postcode for Cityroomz? Sentence10: Are there any nearby museums? Sentence11: The cambridge contemporary art museum is nearby. Sentence12: Wonderful! That is all I needed. Thank you so much! Sentence13: I would prefer a hotel that is in the centre of town and moderately priced if that helps narrow it down. Sentence14: Hi, I'm looking for a hotel, a 0 star hotel is fine as long as it includes free wifi. Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Actually, could you double check whether the Acorn has free wifi? Sentence2: OK, can you please pay attention to my questions? I need a room, please. Sentence3: Sorry about that! You are booked at the Acorn for 4 nights, starting Thursday ref #ZUC5SZAP . Can I be of any further assistance today? Sentence4: Hello, I am looking for a four star hotel on the north side Sentence5: Yes, it does. Would you like me to make a reservation for you? Sentence6: Let us know if you need anything else.Cheers. Sentence7: I have eight results. Do you need free parking? Sentence8: Not really, and I'm not really concerned with wifi either. Which one do you recommend? Sentence9: How about Acorn Guest House? It's located at 154 Chesterton Road. Sentence10: It is rated 4 stars, Sentence11: Yes, please do. I'll be arriving Thursday. They'll be 6 of us, and we'd like to stay for 4 nights. Sentence12: No that will be all. Thanks! Sentence13: Yes, it does. Sentence14: What is the hotel's rating? Question: Who has spoken the sentence 5? (A) User (B) System
Example Output:
Answer: (B) System