Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: No problem, thank you for choosing Cambridge Towne Info Centre. Have a great day! Sentence2: Could you check the city center for me? Sentence3: I am leaving from Cambridge. Sentence4: I am sorry I have no listings for that type of food any other types I can look up? Sentence5: How about indian? Sentence6: Thank you. And where are you headed to? Sentence7: Yes please and a confirmation number too Sentence8: I don't have any South African restaurants at any price range anywhere in the city. Would you like to try a different type? Sentence9: Where would you be departing from? Sentence10: Great. The TR2557 arrives by 12:55, so I have booked it for 6 people. Your reference number is X56LPMKM . Is there anything else I can help you with today? Sentence11: When will you be dining and how many guests? Sentence12: I don't need a booking quite yet, could you get me the postcode? Sentence13: May I suggest Curry Garden. It is in the expensive price range and in the Centre. Would you like a reservation? Sentence14: Sure thing the postcode is cb21dp. Anything else I can do for you? Sentence15: Please help me look for a train that leaves on Friday and arrives at its destination by 1:15 PM. Sentence16: that is it for today thank you very much Sentence17: I am also looking for a expensive restaurant that serves south african food. Sentence18: cambridge and should go to norwich.for 6 people.I need the the reference number Question: Who has spoken the sentence 10? (A) User (B) System
A:
Answer: (A) User