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

Ex Input:
Sentence1: Kymmoy is a great Asian Oriental place in the center of town, but it's expensive. Sentence2: Is there a Oriental restaurant in the City Centre that is in the expensive price range? Sentence3: I have 2 matches. Do you have a type preference? Sentence4: Thanks. I'm also wanting to see if there's someplace to get polynesian food in the centre of town. Sentence5: That's all I will need. Thank you! Sentence6: Where is it located? Sentence7: Please help me find a hotel to stay at in the centre that has a 4 star rating. Thanks! Sentence8: Thank you for using the Cambridge TownInfo centre. Please have a pleasant day. Sentence9: There are no Polynesian restaurants in the centre. Sentence10: I want an expensive place with free wifi. Sentence11: Its location is on Regent Street. Sentence12: That narrows it down to one choice, the University Arms Hotel. It meets all of your requirements, plus has parking. Would you like me to check availability? Question: Who has spoken the sentence 10? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: looking for a train going to Cambridge. Sentence2: How about TR3350 that leaves at 05:17? Sentence3: you can book it. get me the reference number too Sentence4: I am leaving on Sunday and need to arrive by 13:00 Sentence5: Thank you for using our services. Sentence6: Thank you that is all I needed. Sentence7: W8YHJKSV is the reference number Sentence8: What day and time are you wanting to travel? Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: I want to arrive by 11:15. Sentence2: Okay we have the de luca cucina and bar and the riverside brasserie. Which one would you like? Sentence3: Sure, what day do you want to travel? Sentence4: Do you have a preferred time frame ? Sentence5: Let's do the riverside brasserie. What about a table for 3 at 15:00 on Saturday? Sentence6: Great I also need a train that should depart cambridge and head to ely. Sentence7: TR3177 will arrive by 10:07 and leaves at 09:50 would you like me to book it for you? Sentence8: i will do modern european food Sentence9: I would like to leave on a Sunday. Sentence10: Can you check if there are any moderately priced restaurants in the centre of town? Sentence11: Yes, there are several. Do you prefer Asian or British food? Sentence12: No that is all. Thank you. Goodbye Sentence13: You are set, the total fee is 3.52 GBP payable at the station, your Reference number is WVJC995L . May I help with anything else? Sentence14: Ok. Thank you. Goodbye. Sentence15: Yes, please. Include the reference number please Sentence16: Booking was successful. The table will be reserved for 15 minutes. Reference number is : TYDEG9IJ . Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System