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

Ex Input:
Sentence1: Not in that criteria, perhaps another area or price range? Sentence2: I'm booking you a table for 5 at 11:00 Saturday at Charlie Chan. What name should I place this under? Sentence3: I want to eat chinese food in the centre. Sentence4: Yes, please try J Restaurant. Asian Oriental food sounds good. Sentence5: I was able to book you into the J restaurant and your reference number is 87G7FWZM . Sentence6: Thank you for your help! That will be all. Good Bye. Sentence7: Booking was unsuccessful. Would you like to find another restaurant? Sentence8: I don't know what I was thinking earlier, we actually have a lot of cheap restaurants in the centre. J Restaurant serves Asian Oriental. Should we try that? Sentence9: How about Charlie Chan? It is a cheap chinese restaurant in the centre. Sentence10: You're welcome, have a great day! Sentence11: Are there any in the same area and price range but not Chinese? Sentence12: Sure. I would like to book a table for 5 people at 11:00 on Saturday. Sentence13: Are there any other cheap restaurants in the area? Sentence14: Book it for XXXX, can I please get a reference number? Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: The phone number for pizza hut cherry hinton is 01223 323737 and they are located at G4 Cambridge Leisure Park Clifton Way Cherry Hinton. Sentence2: There are two restaurants: Pizza Hut Cherry Hinton and Restaurant Alimentum. Sentence3: No, there are only 2 restaurants in the area. Is there anything else I can help with? Sentence4: Give me the address and postcode of any of them, please. Sentence5: That's great. Thank you so much Sentence6: What kind of food do you want? italian or modern european? Sentence7: The postcode is C.B. 1 7 D.Y Sentence8: Is there anything else available? Sentence9: Hello, I am looking for a moderately priced restaurant in the south part of town. Sentence10: I do not care. Sentence11: What is the postcode? Sentence12: You're very welcome. Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Booking was successful. Reference number is : MZIURVDV . Sentence2: Area does not matter. Sentence3: I'm looking for a 4 star hotel with free wifi. Sentence4: Can we try a different one in the same price range? Sentence5: i have found 21 hotels that match your criteria. what part of town did you have in mind? Sentence6: That one is not open then, shall I try another? Sentence7: No,I will check husband and call back. Sentence8: Sounds great. Can I get it for 7 people? 4 nights starting Saturday Sentence9: I'd suggest the A and B Guest House in the east. It's moderately priced and meets your criteria. Would that work for you? Sentence10: Okay. Let us know. Sentence11: Thanks, that's all I need. Have a nice day. Sentence12: How about Warkworth House? It's also in the east, at warkworth terrace. Sentence13: Okay let's try booking that and get me a reference number. Sentence14: You're welcome. Goodbye. Question: Who has spoken the sentence 11? (A) User (B) System

Ex Output:

Answer: (B) System