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

Example Input: Sentence1: Thank you for the help, have a nice day. Sentence2: Hi, kohinoor is a cheap Indian restaurant, but doesn't specify that it is South Indian. Would you like the phone number? Sentence3: There are 8 trains that will arrive by 21:45. What time would you like to depart? Sentence4: how about 17:00. Sentence5: Great! I am also looking for a train that leaves on thursday and departs from cambridge. Sentence6: Hi, I'm looking for a place to eat, preferably a cheap South Indian restaurant. Sentence7: How many tickets do you need? Sentence8: Yes, that would be great. Could I get a reference number please? Sentence9: Is it in the centre of the city? Sentence10: Would you like for me to book a table at Kohinoor for you? Sentence11: What's the last train to arrive by 21:45? Sentence12: Yes, it is indeed in the centre. The phone number is 01223323639 Sentence13: Destination is Stevenage. I would like to arrive by 21:45. Can you book the train for me as well? Sentence14: It would be the one leaving at 19:21 and arriving at 20:10. Shall I book it? Sentence15: I need 1 ticket. Sentence16: Booking was successful, the total fee is 12.8 GBP payable at the station . Reference number is : 5TM8STAM . Sentence17: What is your destination? Sentence18: Yes, please. 18:00 on Wednesday for just myself. Sentence19: I'm sorry, they're all booked up at that time. Would you like to try a different time? Sentence20: It was a pleasure to serve you have a great day Sentence21: I was able to book that, your reference number is HEJFVRPP . Sentence22: Ok, thank you. Question: Who has spoken the sentence 9? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: 07426688661 is the contact number, I have you in a grey Toyota. Sentence2: Great. Can you tell me where you will be traveling to and from? Sentence3: I need to get there by 11:45. Sentence4: That's perfect, thanks! Sentence5: I need to book a taxi please. Sentence6: You are welcome. Thank you for calling us. Goodbye. Sentence7: Can I help you with anything else? Sentence8: No, that's everything. Goodbye. Sentence9: I want to go from wandlebury country park to huntingdon marriott hotel Sentence10: Okay, I will need some more information from you. What time would you like to leave? Question: Who has spoken the sentence 8? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Back to the guesthouse now ... what is the price range for your favorite one? Sentence2: Thank you. I need a hotel with free parking and free wifi. Sentence3: I would like a place like a guesthouse that has at least 4 stars. Sentence4: First, can you give me my reference number for the train? Sentence5: We have 16 possible guesthouse matches with parking and internet. What price range are you interested in? Sentence6: the arbury lodge guesthouse is quite nice. It's cheap too. Sentence7: I'm leaving on Saturday. Sentence8: Yes please. I need 6 tickets. Sentence9: Yes, there are many. Where are you departing from? Sentence10: Thanks, that's all I needed today. Goodbye! Sentence11: Can you help me find a train leaving after 9:15 going to Ely? Thanks. Sentence12: Yes, the Train ID is TR7738. Sentence13: I am departing out of Cambridge. I really do need to leave sometime after 21:15 for sure. Sentence14: Your reference number is DALA684J Sentence15: I have two on Saturday. Would you like me to book one? Sentence16: I'd love to help you with that. There are so many hotel options in the area. Can you help me narrow it down a bit? Area? Price range, etc.? Sentence17: Thank you. I also need a hotel. Sentence18: There are 14 trains available. What day will you be leaving? Sentence19: Sorry can we go back to the train for a moment? I need the reference number, not the train ID for my booking. Sentence20: I have booked 6 seats for you on saturday. Would you like some restaurant suggestions in ely? Sentence21: Where would you like to stay on your trip? Sentence22: You're very welcome. Have a great day. Goodbye. Question: Who has spoken the sentence 5? (A) User (B) System
Example Output:
Answer: (B) System