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

Example 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
Example Output: Answer: (A) User

Example Input: Sentence1: I'm looking for a nice Italian restaurant. Nothing too expensive...like mid range? Sentence2: Nope, I think that will do it. Thank you so much! Sentence3: Okay, I have booked you at Pizza Express with reference number NK86VOJY . May I help with anything else? Sentence4: I don't care about the area. Could you book a table for 5 at 12:30 on Sunday? Sentence5: I have listing for 5 different ones,can I get what area you are looking for? Sentence6: You are welcome. Have a good day. Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: I'm sorry. I don't have any expensive Indian restaurants either. Would you be willing to try another price range or area? Sentence2: Yes, I'd like a place in the north with a 4 star rating including free wifi please. Sentence3: There are no hotels in that area with free wifi, can I look up a different area or guesthouse? Sentence4: Yes, the Avalon is exactly what you're looking for. It offers internet (but no parking). Would you like me to book a room for you? Sentence5: I'm sorry that area doesn't have anything matching those criteria. May I try another area? Sentence6: And the Avalon is in what part of town? Sentence7: Your welcome. It has been a pleasure assisting you today. Have a wonderful day. Sentence8: I'm looking for a hotel in the north part of town with free wifi. Sentence9: What about Indian food? Sentence10: Is there a guesthouse? Sentence11: Can I help you with any thing else? Sentence12: Avalon is in the north. Can I book you a room? Sentence13: No thanks can I just have the address and postcode? I also need help finding a restaurant. Sentence14: Okay, thank you. Sentence15: The address is 62 gilbert road and the post code is cb43pd. Sentence16: There are no romanian places at any price range there, but we have 5 expensive restaurants, shalI run another search? Sentence17: No thank you that will be all Sentence18: Yes I need a romanian place to eat in the same area, please make sure it's expensive. Question: Who has spoken the sentence 9? (A) User (B) System
Example Output:
Answer: (B) System