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

Input: Consider Input: Sentence1: Yes as long as its in the same area and price range. I need a reference number too then please Sentence2: I'm looking for a cheap restaurant in the west area. Sentence3: I was unable to book that, would you like me to try something else? Sentence4: Okay that is all I need for now. Sentence5: I was able to get you into Thanh Binh. Your reference number is CLIBOL1Q . Sentence6: Let's go with La Margherita. Could you book a table for 2 people at 13:30 on Saturday? Sentence7: Thank you and goodbye. Sentence8: You have your choice of La Margherita, which serves Italian food, or Thanh Binh, which offers vietnamese cuisine. Question: Who has spoken the sentence 7? (A) User (B) System

Output: Answer: (B) System

Input: Consider Input: Sentence1: Booking was successful for the bridge guest house. Your Reference number is : LBEOV690 . Sentence2: Yes please. Which is the cheapest? Sentence3: Thank you. Have a nice day. Sentence4: No. I would like to make a reservation for Wednesday for 3 nights and 8 people. I will also require a reference number. Sentence5: I was unable to book your stay at any of the three hotels. Would you like to change the length of your stay or change the day? Sentence6: There are 2 hotels with a 3 star rating and free parking. Would you like to stay in the centre or south? Sentence7: Sorry, I was mistaken. There are 3 guesthouses matching your request. One each in the south, north, and west. Would you like to book one? Sentence8: Thank you. Have a nice day. Sentence9: Can you please try a 2 day stay. Sentence10: I can only tell you they are all in the moderate price range. Do you have any other preferences? Sentence11: I am looking for a hotel with a 3 star rating and free parking Sentence12: Either is fine. I'd like a guesthouse. Question: Who has spoken the sentence 5? (A) User (B) System

Output: Answer: (B) System

Input: Consider Input: Sentence1: Thank you that is all I need. Sentence2: Oh yes, the Sitar Tandoori is great Indian restaurant on our east side of town. Do you need me to make a reservation for you? Sentence3: Yes, could you book a table for 6 on Friday at 11:45? Sentence4: Yes, I need some help and information pertaining to a particular restaurant. The name of the restaurant is Sitar Tandoori. I'd like some information on the place if you can help. Sentence5: If you could find one in the same price range that would be best. Sentence6: I was able to book pipasha restaurant, reference number is ZO0089US Sentence7: Thank you for calling. Have a great day. Sentence8: I am sorry, I am unable to make a reservation for 6 at that time. Would you like me to try and find another restaurant? Sentence9: I have a few more, moderate or expensive, which do you prefer I book? Sentence10: That's unfortunate. Yes, is there something else in the same area? Question: Who has spoken the sentence 1? (A) User (B) System
Output: Answer: (B) System