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

Sentence1: Yes please. Please make sure the restaurant has a table available for booking for seven people on sunday at 13:15. Sentence2: Glad to be of service! Goodbye! Sentence3: I would really like to get really great Chinese food. Can you suggest an expensive chinese place? Sentence4: Yes! There are 5 that I have found. One in the East, 2 South, 1 North and 1 Centre. Would you like the address of any of them? Sentence5: I have 4 swimming pools to choose from. 2 are in the north, and I have one in the east and centre. Do you have a preference? Sentence6: I don't have a area of town preference. Sentence7: Sure! Abbey Pool and Astroturf Pitch is at Pool Way, Whitehill Road, off Newmarket Road. Would you like the phone number? Sentence8: What type of food. Sentence9: Hey I am looking for a swimming pool to go to while in Cambridge. Can you find me one Sentence10: Great that's all I needed. Thanks for your help. Bye. Sentence11: naw, but i'm looking for some food Sentence12: Sure, there are a number of options. Is there a particular area of town you were interested in? Sentence13: I think the one in the East would be best. Can you give me an address for it? Sentence14: I booked you a table at Hakka (ref #7K0C5AJN). They're on the east side at Milton Road, Chesterton. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: Great. I booked six tickets on TR4095 departing at 11:35 and arriving in cambridge at 11:52. Your confirmation number is W6PWPYOP . Sentence2: I need to book a train for Monday from Ely to Cambridge to arrive by 14:00 for 6 people. Sentence3: What time would you like to leave by? Sentence4: That is all I needed, good day to you. Sentence5: Anytime as long as i arrive by 14:00. Can you provide me with a reference number after booking? Sentence6: Have a great day! Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System

Sentence1: where are you going may I ask? Sentence2: Hey, I have some time to kill and I was wondering if there were any multiple sports places in town? Sentence3: Train TR4664 leaves at 21:29 and arrives at 22:07. Sentence4: I would like the postcode, phone number, and address Sentence5: The cherry hinton village centre, on the eastside, is the only one in town. Would you like more information? Sentence6: I also needs a train that leaves after 13:00 on friday. Sentence7: I do not have the hours but they can be reached at 01223576412, can I help with anything else? Sentence8: Yes. May I please get a recommendation for a museum in the centre of town? Sentence9: Can you get me the hours for that one? Sentence10: Yes, I'll also need the postcode and address, please? Sentence11: I would recommend the Regency Gallery. Do you need anything else? Sentence12: There is a train that leave at 13:29 on Friday. Do you want that instead? Sentence13: The phone number for Regency Gallery is 01223365454. Can I be of further assistance today? Sentence14: The cherry hinton village centre is located at colville road, cherry hinton, postcode cb19ej. Their phone number is 01223576412. Can I do anything else for you today? Sentence15: The museum's address is 39 fitzroy street cb11er. May I assist you further? Sentence16: From Cambridge to Bishops Stortford. Sentence17: Isn't there a train that leaves closer to 13:00? Sentence18: ok, what is their phone number? Question: Who has spoken the sentence 12? (A) User (B) System

Answer: (A) User