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

Ex Input:
Sentence1: Can you give me the address for the Parkside Police Station? Sentence2: No, that's all. Good bye. Sentence3: The address you're seeking is Parkside, Cambridge. Sentence4: Telephone : 01223358966 Postcode : CB11JG. Is there anything else? Sentence5: You're welcome. Thank you for contacting TownInfo centre today. Goodbye Sentence6: Thank you, what is the phone number and postcode? Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Does it have internet? Sentence2: I can help you with that I just need to know what time you'd like to be picked up from the guesthouse? Sentence3: No, that is it. Thank you so much. Sentence4: I have 3 great guesthouses in the east. I recommend Warkworth House. Would you like to book a room? Sentence5: The Yu Garden is a Chinese restaurant in the East, would you like to book a table? Sentence6: How about a Chinese restaurant? Sentence7: There are no australasian restaurants in the east. Would you like to try a different cuisine or can I check another area for you? Sentence8: Can i get the address and number to Yu Garden? Sentence9: I'm happy to be of service, and thank you for using the Cambridge TownInfo Centre! Sentence10: I would like to leave at 5:45. Sentence11: Yes it does. Would you like to make reservations? Sentence12: Hi, I am looking for a nice moderately priced hotel located in the east. Sentence13: Okay, thanks. I'm also looking for a place to eat that serves Australasian food. Can you help me with that? Sentence14: Warkworth does offer internet. Sentence15: Yes, the address is 529 Newmarket Road Fen Ditton and the postcode is cb58pa. Sentence16: The taxi will pick you up at the guesthouse at 05:45 and will be in a white lexus. Their contact number is 07730745339. Is there anything else I can help you with? Sentence17: Thank you. I also need a taxi to get between the two places. Sentence18: Maybe. Does it have 4 stars? Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I need to go to london kings cross by train Sentence2: Not yet. Can you just give me the phone number and postcode of the Worth House? Sentence3: How many stars would you like? Sentence4: Anything leaving a little bit earlier but after 15:30? Sentence5: Thank you for using Cambridge TownInfo centre. Please consider us for your future travel needs. Sentence6: Actually, that is the earliest train available that leaves after 15:30. The next train before that departs at 15:00 which wouldn't fit your criteria. Would you like to book any tickets? Sentence7: The North, please. Also, I would like a guesthouse in the cheap price range. Sentence8: Okay! Do you know where you want to depart from or the day of the trip? Sentence9: TR6626 leaves Cambridge on Friday at 17:00. Would that work for you? Sentence10: I guess that will have to do. Go ahead and book it. Sentence11: I can help you with that, but let me gather a few more details. What area of town would you like to visit? Sentence12: yeah. Cambridge to london kings cross.The train should leave after 15:30 on Friday Sentence13: Why thank you for your kind help! Sentence14: I will. Thanks for all the help! Sentence15: Thank you and enjoy your stay in Cambridge. Sentence16: The booking was successful. Your reference number is 23ELORQB . Sentence17: You're welcome. Is there anything else I can do for you? Sentence18: There are two options. City centre noth b and b and worth house. Would you like to make a reservation at one? Sentence19: Any is fine, as long as it has free parking. Sentence20: I also need a place to stay. Sentence21: Sure. The phone number is 01223316074 and the postcode is cb41da. Sentence22: That was all I needed today, thank you! Question: Who has spoken the sentence 13? (A) User (B) System

Ex Output:

Answer: (B) System