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

Ex Input:
Sentence1: Yes I have it for you, its 0123357187 Sentence2: Yes, I will need the reference number please. Sentence3: Will you be needing a reference number? Sentence4: Do you have any cuisine preferences? Sentence5: any of them. book a table for 2 people at 18:45 on wednesday Sentence6: Sure. Would you like to reserve a table at Ugly Duckling, Tang Chinese, HK Fusion, or Sesame Restaurant and Bar? Sentence7: I'm looking for a luxurious dining experience in the centre of Cambridge. Sentence8: I would really like asian oriental food tonight. Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: Could I get the reference number please? Sentence2: I have a table for 4 at 12:15 on Saturday at Curry Garden. Is there anything else i can help you with? Sentence3: You are welcome! Enjoy your visit! Sentence4: No that is all I do believe thanks for all of your help Sentence5: I am also looking for an Indian restaurant that is located in the centre? Sentence6: Yes your booking was successful and your reference number is Z7XFCSHU . Sentence7: Yes, can you please book a room for me for 4 people for 5 nights starting on Thursday. Sentence8: there is curry garden as well as eight other options for you. Sentence9: I'm looking to get some info about a hotel called Home from Home Sentence10: Home from Home is located at 78-80 Milton Rd. It's a 4 star hotel in the north part of town. Phone is 01223323555. Sentence11: Curry Garden sounds good, can you book me for 4 people at 12:15 on saturday? Sentence12: Your reference number is XDJE6L0H . Do you need anything else? Question: Who has spoken the sentence 11? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: Thanks for all your help. Sentence2: Addenbrookes Hospital is located at Hills Rd, Cambridge CB20QQ. May I help with anything else? Sentence3: No thank you, but can you also give me their postcode? Sentence4: That's all I needed. Thank you! Sentence5: Can you please help me find a hospital in town? Sentence6: You're quite welcome! Thank you for using the Cambridge TownInfo centre. Sentence7: Sure thing. Their postcode is CB20QQ. Is there anything else I can help you with? Sentence8: Glad to help. Have a good day. Sentence9: What is their address? Sentence10: The closest hospital would be Addenbrookes Hospital located on Hills Road in Cambridge. Their phone number is 01223245151. Did you need a phone number for a particular department? Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User