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

Sentence1: Yes please book it for one person for 2 nights starting friday. Sentence2: Sure. Your booking was successful and I have a reference number for you. It is IBDDDIAJ . Sentence3: Thank you for using our service today. Sentence4: I'm looking to get some info on a hotel called cityroomz. Sentence5: Thank you very much for your help. Have a great day. Sentence6: I've found it, would you like me to book it for you? Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System

Sentence1: Yes. I will be staying 5 nights starting Friday. Sentence2: Im also looking for the cow pizza kitchen and bar. Whats the address for it? Sentence3: its address is Corn Exchange Street. what else can i do for you? Sentence4: Oh, expensive please. I do hope it is a guesthouse? Sentence5: You have helped me with everything I need. Thank you. Sentence6: Anytime. Enjoy your visit. Sentence7: I'll be staying for 5 nights. Sentence8: Unfortunately they are both hotels. Sentence9: Booking was successful. Reference number is : GQPN80PK . Is there anything else I can assist you with today? Sentence10: Okay I've got three options here. Would you like a cheap or an expensive price range? Sentence11: Can you help me locate a hotel to stay at that has free parking and a 4 star rating? Sentence12: Oh. I would really prefer a guesthouse. How about the moderate price range? Sentence13: Okay, I recommend The Acorn Guesthouse. Would you like me to book there? Sentence14: NO problem. How long are you staying? Sentence15: The location isn't important. I need to book it for Friday, please. Sentence16: They are moderate, it is a gastropub, in case you need them, the postal is cb23qf and the phone number is 01223308871, can I assist with anything else? Sentence17: I have 9 guesthouses in the moderate price range, do you have a location preference? Sentence18: I need it's price range please Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System

Sentence1: I have 8 hotels with free wifi and parking. What price range would you like? Sentence2: I booked a room for you at the Gonville Hotel at Gonville Place. Your reference number is 4ZRJZIVU . Can I help you with anything else today? Sentence3: In the expensive price range please. Sentence4: It is an expensive 3 star hotel. I'm sure you'll love it. Is there anything else I can help you with? Sentence5: Thank you for calling. Enjoy your stay. Sentence6: I have found several hotels. Is there a specific area you are looking for? Sentence7: I do not care about the area too much. Could you please make a reservation for 1 person starting Thursday for 5 nights? Sentence8: Hello. I am looking for a hotel with free wifi and free parking. Sentence9: Is the Gonville a good quality hotel? Sentence10: That was all, thank you. Question: Who has spoken the sentence 9? (A) User (B) System

Answer: (B) System