Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Yes please if it's available. Sentence2: The train should depart from leicester and should leave on saturday. The train should go to cambridge and should arrive by 10:15 Sentence3: Can you recommend an eritean or british restaurant in the centre area? Sentence4: The booking was successful. The table well be held for 15 minutes. Your reference number is QSNSUAGG . Can I help with anything else today? Sentence5: I'm sorry, there aren't any available. Would you like to try something else? Sentence6: I recommend the oak bistro. It is a british restaurant in the centre. Sentence7: I'm sorry, but there are no restaurants serving British food in the centre of town. Sentence8: I think that is all I need for today. Thank you for all your help! Sentence9: I'm independently wealthy and price doesn't matter, I am interested more in eritrean food, do you have any with that? Sentence10: The table will be reserved for 15 minutes. Reference number is : QSNSUAGG . Is there anything else I can assist you with? Sentence11: I am looking for a train departing from Leicester and going to Cambridge on Saturday. Sentence12: Okay, the TR2969 leaves at 08:09 and arrives at 09:54. Would you like me to book tickets? Sentence13: There are many trains available for you. Do you have a departure or arrival time in mind? The trip will take 105 minutes. Sentence14: Okay, your booking was successful! Your reference number is 5FHHNO0K . The total fee is 120.06 and you can pay that at the station. Sentence15: Yes, please for four people. May I also get the reference number? Sentence16: Could you book it for me, for Saturday? Sentence17: There will serves nice British food. Its taste is good Sentence18: There are 69 restaurants in the centre. Can I narrow it down by price for you? Sentence19: Just double checking. The restaurant reservation is for Saturday at 15:15, correct? Sentence20: How about a place that serves British food? Sentence21: I'm glad we could help! Please contact us anytime. Good bye. Sentence22: That is correct for 4 people at the oak bistro. Sentence23: That sounds like it will do. Can you reserve a table for the same group of people at 15:15 on the same day, please? Sentence24: I am also in the market for a new restaurant. Is there something in the centre of town? Question: Who has spoken the sentence 9? (A) User (B) System
Output:
Answer: (B) System