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

Example Input: Sentence1: I do not have all of that information at this time. Can I talk to you again when I know more? Sentence2: I am looking for a hotel with free parking in the North. Sentence3: Okay. Please help me book this guesthouse. Sentence4: Yes that is all right. Sentence5: Yep there are 5 guesthouses. Do you wanna just try acorn guest house? Sentence6: Are any of those 11 guesthouses? Sentence7: Does it offer free wifi? Sentence8: It's my pleasure. Have a nice trip! Sentence9: What day, number of nights, and number of people would you like to book for? Sentence10: Thank you for your help! Sentence11: Yes, it does have internet. Sentence12: There are 11 hotels that meet your needs. Would you like to narrow them down by price range? Question: Who has spoken the sentence 9? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I don't care when I arrive, but I need to leave after 10:00. Sentence2: Perfect, thanks so much for your help. Sentence3: Yes. Wednesday please. Sentence4: I have successfully make a booking for 5 on that train. Sentence5: Sounds great. Can I get their postcode please? Sentence6: Is there anything else I can assist you with today? Sentence7: Can you find me a train from Stansted Airport? Sentence8: Alright, thanks for contacting Cambridge TownInfo centre! Have a good day. Sentence9: TR0467 leaves the airport at 10:24. Would you like tickets for that train? Sentence10: No that is everything. Have a good day. Sentence11: Queen's college is an excellent choice. Sentence12: The postcode for Queen's College is cb39et. And the reference number for your train (booked earlier) is WMUC700A . Sentence13: Can I have the reference number please? I'm also looking for some places to go, maybe a college in the west. Sentence14: Not a problem. Any day in particular? Sentence15: There are plenty of options. Where will you be arriving and do you have a time preference? Sentence16: Yes, for five please. Question: Who has spoken the sentence 14? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: I am so sorry but the da vinci pizzeria is fully booked and I was unsuccessful. Do you want me to try another restaurant? Sentence2: Okay I was able to book you into The Royal Spice serving Indian food and your reference number is K8N0LLBP . Sentence3: Yes how about one in the same area and price range please? Sentence4: I found Da Vinci Pizzeria is a cheap restaurant in the north. Would you like me to make a reservation? Sentence5: I have you scheduled for a reservation for 1 on Sunday at 12:30, would you like a confirmation receipt? Sentence6: Yes please. For one person at 12:30 on Sunday. Sentence7: Thank you for using this service. Goodbye. Sentence8: Awesome! Thanks so much. That is all I need. Sentence9: I want to find some information on da vinci pizzeria Sentence10: Yes, please give me the reference number. Question: Who has spoken the sentence 5? (A) User (B) System
Example Output:
Answer: (B) System