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

Ex Input:
Sentence1: The area doesn't matter. I would like free wifi though, if possible. Sentence2: Not really, how about 4 star? Sentence3: Do they also have free parking? Sentence4: I have many options. Do you have a preference for the area you would like to stay in. Sentence5: There are several moderate 4-star places to stay throughout town, but they are all guesthouses. Would a guesthouse work for you? Sentence6: acorn guest house does have free parking,would you like that one? Sentence7: Dojo Noodle Bar is a nice cn I book you a table ? Sentence8: I'm looking for a moderately priced, 1-star place to stay. Sentence9: No, I don't need a hotel booking at this time. I'd like to find a place to dine on Sunday. Sentence10: Unfortunately we do not have any moderately priced 1 star hotels in Cambridge. I'm sorry! Cityroomz has 0 stars in the centre, does that work? Sentence11: Would you like me to reserve the acorn guest house for you? Sentence12: Yes. I also need to find a place to dine that is in the center and the same price range as the hotel. Question: Who has spoken the sentence 9? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: It's a hotel. There are 5 guesthouses in the area. Do you prefer cheap or moderate for the price range? Sentence2: I want to go from cambridge to ely, no preference for time but I need to book for 8 people. Sentence3: Great. Can you help me with a train as well? I'm looking to come in from Ely. Sentence4: What is your destination? And do you have any preference for day, departure or arrival time? Sentence5: There are 5 guesthouses that have free parking. Should I book one of them for you? Sentence6: There are trains that run every two hours every day starting at 5:50. Do you know what day you'd like to travel? Sentence7: Okay, none of them DON'T offer free wifi? If not, I'll need the address for one that does have wifi, please. Tell me about your favorite. Sentence8: no, but it should have free parking, please. Sentence9: Thank you and enjoy your visit. Have a great day. Sentence10: The price doesn't really matter. I just need free parking. It doesn't really need to have internet though. Sentence11: The allenbell is a guesthouse on the east. The addres sis 517a coldham lane post code cb13js. Sentence12: There are no hotels that do not have internet, but 7 which do have it. Do you have a specific price range you'd prefer? Sentence13: Is that a guesthouse or a hotel? I'd really prefer a guesthouse. Sentence14: Hi. I'm looking for a hotel in the east. The internet is not needed. Sentence15: The Express by Holiday Inn Cambridge is in the area and has free parking, would you like more information? Sentence16: No, I don't need anything else right now. Thank you for your assistance. Good Bye. Sentence17: I'm looking for Wednesday , arrive by 11:30 for 8 people Please. Sentence18: Booking was successful, the total fee is 35.2 GBP payable at the station. You reference number is 7ZCVR4Q3 . Can I help you with anything else? Question: Who has spoken the sentence 15? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Can I get travel time and price first, please? Sentence2: I would like to leave on Saturday from london liverpool street Sentence3: No, thank you. That's all I needed today. Sentence4: The trip is 50 minutes long and it is 13.20 pounds for a ticket. Sentence5: Ok thanks, Im ready to book. Sentence6: Thank you, goodbye. Sentence7: Okay, and which day would you like to travel? Sentence8: Yes, please. I need to know the price and travel time for that as well. Sentence9: Great, I have booked your ticket, your reference number is : 9LLWMNOM . May I help with anything further. Sentence10: TR7397 leaves from London Liverpool Street on Saturday at 05:39 and arrives in Cambridge at 07:07 with travel time of 88 minutes. Cost is 13.28 pounds. Shall I book this ticket? Sentence11: Please find a train that departs from Peterborough and arrives in Cambridge by 8:45. Sentence12: The TR3390 arrives Saturday at 8:38. Would you like me to book it for you? Sentence13: Train TR3390 is departing from peterborough to cambridge. Would you like me to look for a train departing from London Liverpool? Sentence14: I'm so sorry. I didn't mean to book yet. I won't need that reservation. Could you make sure that train TR3390 is departing from London Liverpool? Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:

Answer: (B) System