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

Ex Input:
Sentence1: Sure, that post code is cb39al. Can I further assist you? Sentence2: I'm interested in visiting colleges while in town, can you please recommend some? Sentence3: I can recommend clare hall and christ's college. You need phone numbers for either one? Sentence4: Okay the TR5009 leaves at 18:40. Sentence5: Yes I also need a train to stansted airport on sunday Sentence6: That sounds great, do I call to book a seat or can you help me? Sentence7: No, thanks. That's all I needed. Sentence8: I'm glad I was able to help you. Thanks for using our service have a nice day. Sentence9: Sure. Where will you be departing from, and what time? Sentence10: Please book for 6 people. Sentence11: I am leaving from Cambridge. I would like to leave sometime after 18:00. Sentence12: I would like the post code for clare hall please. Sentence13: I would be more than happy to help you book! Tickets are 8.08 pounds. How many tickets would you like me to book for your trip? Sentence14: Booking was successful, the fee is 48.48 GBP payable at the station . Reference number is 4ESBHTB0 . Is there anything else I can help you with? Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: Alright. I booked your train leaving Cambridge at 19:34 and arriving in Peterborough at 20:24. The reference number is A8T38EJZ . Sentence2: Cityroomz is a moderately priced hotel with internet. Would that work for you? Sentence3: What day are you traveling, and to which station? Sentence4: Thanks, have a good day. Sentence5: You, too. Goodbye. Sentence6: Okay. Call us back if you need me to book anything for you. Sentence7: Yes that will work. Can I get the hotel's phone number? Sentence8: We have 30 such entries. Do you have a time you'd like to leave by? Sentence9: Sure thing, their number is 01223304050. Is there anything else I can help you with today? Sentence10: Any time is fine as long as I can book for four people. I also need the reference number, please. Sentence11: I'll be traveling on wednesday, and I will be go to peterborough. Sentence12: There are 9 different hotels that have free wifi that aren't guesthouses, do you have a price range in mind? Sentence13: No particular price range but I would like it to be in the centre. Sentence14: Thanks. I'm also looking for a hotel (not a guesthouse) with free wifi. Sentence15: No, that will be all, thank you for your help! Sentence16: I need a train departing from cambridge and arriving by 20:45. Question: Who has spoken the sentence 14? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: Sure. Where are you departing from? Sentence2: TR7935 leaves at 21:16 and arrives by 22:35. Is that okay? Sentence3: There are 5 different nightclubs in that area. Might I suggest Ballare. Would you like more info? Sentence4: I'm leaving from Norwich and would like to leave after 12:15, please. Sentence5: I think I would like a nightclub in the centre of town please. Sentence6: There are twelve possible trains leaving after 12:15. Should I book you on one of them? Sentence7: Cambridge has over 70 delightful attractions, what type appeals to you most? Sentence8: You are booked for two tickets, Reference number is : RJOUA7E1 . Sentence9: I am sorry. I need the train to leave after 21:15 from Norwich. Are there any available? Sentence10: That was everything I needed. Thank you very much for helping me. Sentence11: You are welcome, goodbye. Sentence12: I need the address, entrance fee, and phone number. Sentence13: That sounds good, I will need 2 tickets please and a reference number. Sentence14: The address of Ballare is heidelberg gardens, lion yard. The phone number is 01223364222. The entrance fee is 5 pounds. Sentence15: I am also looking for places to go in town. Sentence16: I'm looking for train that go to Cambridge that leaves on Tuesday. Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System