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

Ex Input:
Sentence1: Price range doesn't really matter, but I do want a 4-star place with free parking and internet. Sentence2: I have 19 hotels that match that criteria. please be more specific about the area of town where you'd like to stay Sentence3: Do you prefer a formal hotel, or a guesthouse? Sentence4: OK, what price point do you want me to look for? Sentence5: Booking was successful at the alexander bed and breakfast. Reference number is : MDB2AV4K Sentence6: i need a place to stay Sentence7: The area doesn't matter. Please book for 6 people on Saturday with 4 nights stay. Sentence8: Can you give me a suggestion for a hotel and make that reservation please? Thanks. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: I can get you a ticket on the tr8495 it will get you there by 10:55, or is that too early? Sentence2: I'm sorry I changed my mind. I just need the price per ticket please. Sentence3: I'll be going from Cambridge to Norwich. Sentence4: Yes. Please reserve for 5 people on Monday at 14:00. Sentence5: Have a great day and enjoy your time in cambridge. Sentence6: No that sounds good,please book it for me Sentence7: I also need a moderate restaurant in the town centre that serves European food. Sentence8: The price is 17.60 pounds sterling. Can I help with anything else? Sentence9: How many tickets will you be needing? Sentence10: Booked. The table will be reserved for 15 minutes. Reference number: XLZVMYRL . Sentence11: I need to take a train to here. I want to arrive by monday at 17:15. Sentence12: Great. I can't wait. Thanks! Goodbye! Sentence13: The riverside brasserie serves modern european food. Would you like to make a reservation today? Sentence14: Okay, there are plenty of options. Where are you headed? Question: Who has spoken the sentence 11? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: Reference number is LFBB6YNO . Sentence2: Will the taxi be picking you up at the hotel or at the museum? Sentence3: I also need a taxi to commute between the two places. Sentence4: Your taxi is booked. Look for a blue ford, their contact number is 07211297115. Is there anything else I can help you with? Sentence5: I can recommend the City Centre North B and B. It is in the cheap price range. Would you like me to book that for you? Sentence6: What is your price range? Sentence7: I do not. Can you recommend one? Sentence8: The Broughton house gallery is in the centre. It's postcode is cb11ln. The phone number is 01223314960. Is there anything else I can help you with? Sentence9: Any range is fine but it needs to include free wifi and parking. Sentence10: If you need anything fell free to call us. Sentence11: I need picked up at the hotel by 9:15 please. Sentence12: Thank you and Goodbye, Sentence13: No, that is wonderful. Have a nice day and thank you. Bye. Sentence14: Hi, I'll be traveling to cambridge and am excited to find some places to go. Can you help me? Sentence15: im looking for a museum in the centre. may i also have the postcode and phone number for them as well? Sentence16: I also need to book a guesthouse in the north. Sentence17: You're welcome! Thanks for contacting Cambridge TownInfo centre! Sentence18: I will be more than happy to assist you. Please tell me what kind of attractions you are interested in? There are many categories of attractions in the Cambridge area. Sentence19: Sure. I'll need rooms for 4 people reserved for 4 nights, beginning Saturday. Can I have the reference number for that booking? Sentence20: Okay, I have 9 guesthouses that fit your needs. Are you looking for a particular star rating? Question: Who has spoken the sentence 11? (A) User (B) System

Ex Output:
Answer: (B) System