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

Ex Input:
Sentence1: I am looking for a particular hotel. Its name is called autumn house Sentence2: Thank you goodbye Sentence3: Could you try Wednesday, instead? Sentence4: You're welcome. Thank you for calling and goodbye. Sentence5: That's for 8 people and it's for 2 nights. Sentence6: Booking was successful. Reference number is : 3H0WHD4Z . Sentence7: No thanks. Would you book the Autumn House for me starting on Monday, please. Sentence8: I'm sorry, your booking was unsuccessful. Would you like to book another day or a shorter stay? Sentence9: How many people would be staying and how many days will you be staying? Sentence10: I have the Autumn House. It is at 710 Newmarket Road. Would you like the phone number? Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: I'm going to saint johns chop house. Sentence2: What is your destination? Sentence3: The contact number is 07727071722. Is there anything else I can help you with? Sentence4: I can help you with that. When do you need to leave? Sentence5: No that is all Thank you goodbye. Sentence6: I need the contact number please. Sentence7: Your taxi is booked. Look for a yellow Volkswagen. Sentence8: Please call us anytime. Good Bye. Sentence9: I need to get a taxi out of holy trinity church. Sentence10: I need to arrive at the chop house by 22:30. Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: Friday for 2 people. We'll be staying for just 2 nights Sentence2: Ok. Thanks for your help. Goodbye. Sentence3: Okay, no problem! Their postcode is CB58PA. Would you like help with anything else? Sentence4: friday and can I get the reference number too please? Sentence5: Sure, what day and how many people? Sentence6: Please find me a good Chinese restaurant on the East side Sentence7: I would like to stay in the east. I do not have a price range. Sentence8: Ok, I have booked you a taxi, It is a yellow toyota and you may reach them at 07319585629. Is there anything else? Sentence9: Sure, the reference number is D0OZC26N . Is there anything else I can help you with today? Sentence10: Yes, I want to find a hotel with free wifi. Sentence11: thanks for inquiring with us Sentence12: Yes, I'll also need a taxi that will commute between the two places. I'd like to leave the hotel at 08:45. Sentence13: I show one chinese restaurant in the east, Yu Garden. Shall I make reservations for you? Sentence14: That is everything that I need. Sentence15: No at this time I would just like their postcode. Sentence16: When will you be arriving? Sentence17: Do you have an area you'd like to stay in? And what is your price range? Sentence18: Booking was successful. Reference number is : D0OZC26N . Is there anything else I can help with? Sentence19: Could you fax me the reference number, as well as any fees for additional amenities? Sentence20: The carolina bed and breakfast is a moderately prices hotel rated 4 stars. Sentence21: welcome anytime you need help Sentence22: Can you book a room for me? Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System