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 really matter, can you pick a popular me for me? Sentence2: hmm, what about chinese food? Sentence3: You're all set! It's a grey volvo. If you need to contact the driver for any reason, the contact number is 07174343971. Sentence4: Yes, I'd like to take my husband there at 11:30 on Wednesday. Sentence5: Sure I've found an expensive place named yu garden in the east, would you like me to book something? Sentence6: Thank you, you were a great help. That's all I needed. Sentence7: have great day too Sentence8: welcome and have a great day Sentence9: Booked! The table will be reserved for 15 minutes. Your Reference number: 5R5C75ZP . Sentence10: Would you like me to reserve it for you. Sentence11: Sure. What time would you like to leave? Sentence12: I'd also like to book a taxi from the pool to the restaurant that arrives by the reservation time. Sentence13: Parkside Pools is centrally located and their address is Gonville Place. Is there anything else I can help you with today? Sentence14: i am looking for a swimming pool. Sentence15: I'll be going now. Good-bye Sentence16: As long as it arrives by 11:30 it doesnt matter when it leaves Sentence17: Sure, which part of town are you looking for? Sentence18: I'm looking for a sri lankan restaurant. Sentence19: Yes, please. I'll need the contact number and car type. Sentence20: I'm sorry. I'm not able to find anything that meets your criteria. Would you like to try a different type of food? Question: Who has spoken the sentence 17? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Graffiti sounds good. I actually need that reservation for 5 people at 20:00 on Wednesday. Can I have the reference number for that? Sentence2: There are two trains that would work. One arrives at 07:07 and the other arrives at 01:07. Which one would you prefer? Sentence3: I would recommend Graffiti. It is a bit expensive, so if you want something moderately price there is also Saint Johns Chop House. Sentence4: Great, thanks! That's all I needed right now! Sentence5: Alright, I've booked a train for your group, the reference number is AOIMGBHK, and there will be an 83 GBP fee at the station. Sentence6: What time would you like these reservations? Sentence7: I need to find a British restaurant in West Cambridge. Sentence8: i can definitely do that, how many tickets would you like? Sentence9: No, can you recommend a favorite? Sentence10: I would also like a train departing from london liverpool street and arriving in Cambridge at 09:00 on the same day. Sentence11: Please book 2 tables for 8 people on friday also i need train tickets for 8 people. Sentence12: There are multiple options for you. To narrow them down what price range do you have in mind? Sentence13: Can you book the train that arrives at 07:07 that one would work great. I need the reference number as well. Sentence14: it's for the same group of people Sentence15: Booking was successful. The table will be reserved for 15 minutes. Reference number is : YYPPDY56 . anything else i could help you with? Sentence16: You're welcome. Have a great day. Question: Who has spoken the sentence 11? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: No, that is all, thank you. Sentence2: Yes, if there is one available. Sentence3: I need a restaurant in Cambridge that is expensive and also in the centre of town. Sentence4: Does Bedouin serve German food? Sentence5: Are there any Japanese restaurants in the same area and price range? Sentence6: Great! I'd like to make a reservation for 6 people at 17:15 on Tuesday. And I'd like a reference number, please. Sentence7: Booking was successful. The table will be reserved for 15 minutes. Your reference number is ZMGYWSSO . Is there anything else that I could help you with? Sentence8: I'm sorry I mean to say 9:15. I need to arrive by 9:15. Sentence9: There are 13 trains the latest is an arrival at 18:35 would that work for you? Sentence10: Wagamama is a Japanese restaurant in the centre area in the expensive price range. Sentence11: I'm looking for a train on the same day that arrives by 19:15 and departs from Norwich (going to Cambridge, of course). Sentence12: Yes, please reserve six tickets for us. Sentence13: It's my pleasure! Thank you for contacting us. Goodbye! Sentence14: I don't have any expensive german restaurants in the centre. Sentence15: No, it serves African style food. Would you like to find a restaurant that serves German? Sentence16: Bedouin at 100 Mill Road City Centre meets your criteria. Would you like a booking made for you? Sentence17: I have booked your tickets. The reservation number is 8IIV469O . The fee is 105.6 GBP payable at the station. Is there anything else I can do for you? Sentence18: TR0339 leaves Norwich at 07:16 and arrives in Cambridge at 08:35. Would you like me to reserve your tickets, and if so, how many will be traveling? Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:

Answer: (A) User