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

Ex Input:
Sentence1: There's a lot to do in the south. There's a cinema, entertainment, museum, nightclub, park, and theatre. What sounds good to you? Sentence2: Maybe we can do a picnic in the park. Can you tell me about what's available? Sentence3: That sounds great, thank you. I'm also looking on information on trains arriving from cambridge by 15:15. Sentence4: you're welcome. i hope you'll have a wonderful and adventurous picnic. Goodbye Sentence5: How about wandlebury country park that is located in the south park of town? It is also free. Sentence6: No thank you. Sentence7: My pleasure. Can I help you with something else? Sentence8: Your best bet would be the TR3685 which leaves Cambridge on Friday at 13:00 and gets to London Kings Cross at 13:51. Sentence9: Okay and what day would you like to travel? Sentence10: I'm feeling adventurous and would love to get recommendations about places to visit in the South Sentence11: Perfect. Thank you for your help today. Sentence12: I would like to travel to london kings cross on friday. Question: Who has spoken the sentence 5? (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: anytime after 19:00 Sentence2: Yes I am looking for a attraction called holy trinity church. Sentence3: Do you have the address of holy trinity church? Sentence4: I would like to leave on Saturday. Sentence5: Yes. I would like to book for 3 people and will need a reference number. Sentence6: That's all I need. Thank you. Sentence7: Holy Trinity Church is located on Market St in postcode cb23nz. It's free to get in. Did you have any further questions? Sentence8: Thank you. Can you help me find a train going to Leicester? Sentence9: I have a train that leaves at 19:21. What day would you like to travel? Sentence10: Yes, when would you like to leave? Sentence11: I booked you 3 seats on TR4708 leaving Cambridge on Saturday at 20:21, the total fee is 90.72 GBP and your reference number is FVMA8AAO . Sentence12: TR4708 departs cambridge at 19:21 and arrives at 21:06. Can I book that for you? Sentence13: I'm glad that I can be of help please have a great trip. Sentence14: Yes it's on Market street. Question: Who has spoken the sentence 8? (A) User (B) System

Ex Output:
Answer: (A) User