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

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: Price doesn't matter. Do they have free parking? Sentence2: I need an expensive restaurant in west Cambridge. Sentence3: No I just need the reference number for the reservation for 3 people on Sunday at 16:15. Sentence4: Give me the address and phone number for the one you most recommend Sentence5: There are 33 options for lodging in town. Do you have a preference for area, price range, type, or star rating? Sentence6: No I am good! I do not need a taxi. Sentence7: Yes, both the establishments offer free internet as well. Sentence8: Do they have free wifi also? Sentence9: I would like a place to stay Sentence10: There are two places that meet your search criteria. Did you have a price range in mind? Sentence11: I have 5 restaurants that match what you're looking for. Would you like to try Tandoori Palace? Its located at 68 Histon Road Chesteron. Sentence12: No I believe we have got everything done. Goodbye. Sentence13: Do they offer free parking? Sentence14: I want Indian food. Sentence15: In terms of type, I want a hotel. And I'd like 4 stars and wifi as well, with a location in the south Sentence16: Happy to help. Have a great day. Sentence17: Yes, they do offer free parking. Can I book a room for you? Sentence18: We have several to choose from. Did you have a specific cuisine in mind? Sentence19: Sure. The reference number is CBAGG03S and your table will be reserved for 15 minutes. Is there anything else today? Sentence20: No thank you. I have all the info I need. Sentence21: Rosa's Bed and Breakfast is the one I recommend. It's address is 53 Roseford Road and it's phone number is 01223512596 Sentence22: Yes as a matter of fact they do. Sentence23: Will you need a taxi to get to tandoori palace? I can help with that. Sentence24: Can I help you with anything else today? Sentence25: I will book that for you. Would you like the phone number in case you change your mind? Sentence26: Sure, can I get a reservation for Sunday at 16:15? I will need a table for 3. Question: Who has spoken the sentence 16? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: For what day would you like me to try booking for? Sentence2: Train TR7656 departs Cambridge on Tuesday at 09:01. If this works for you how many tickets do you need booked? Sentence3: Awesome. Take care! Sentence4: I have booked 6 tickets for train TR7656 leaving at 9:01 Tuesday. The total fee is 107.4 GBP payable at the station and the reference number is SGNRTY27 . Is there anything else I can help you with? Sentence5: There are no moderately priced hotels in that side of town. Would you like to try a different side of town? Sentence6: That is all, thank you. Sentence7: I definitely want to stay in a hotel, not a guesthouse. Is the hotel moderately priced, and does it have free parking? Sentence8: I see, well how about a guesthouse in that area with free parking? Sentence9: Unfortunately, neither guesthouse can accommodate 2 nights. Is there another date you'd like to try for, or would you like to try for 1 night rather than 2? Sentence10: There are 3 guesthouses and 1 hotel in the south of town. Is there a particular price range you're looking for? Sentence11: I have booked 6 into Acorn Guest House for 2 days starting Sunday. It is moderately priced, in the north, with parking. Reference number 0GNWIGNC . Is there anything else? Sentence12: Let's try again. A moderately priced guesthouse in the south with free parking. Sunday, 2 nights, 6 people. Sentence13: OK, can you accommodate 2 nights then? Sentence14: Could you check another area of town perhaps that can accommodate 6 guests for 3 nights starting Sunday with a moderate price and free parking? Sentence15: I'm sorry, as I previously mentioned neither guesthouse can accommodate that request. How about another area of town? Sentence16: Yes, which one has room for six guests? Sentence17: Yes I have two guesthouses in that area. Would you be interested in either of them? Sentence18: I need a train from cambridge to broxbourne that leaves after 8:15 on tuesday. Sentence19: Unfortunately those are the only options within that price range. Would you like me to look for a more affordable option? Sentence20: Unfortunately, neither of those guesthouses can take in 6 guests for three nights on Sunday. Might I suggest another day or a shorter stay? Sentence21: I need it on Sunday, for 3 nights. Sentence22: I'm looking for a place to stay in the south of town. Sentence23: Not based on Sunday arrival - would you like to try another day or shorter stay? Sentence24: Just please book for that room for 2 nights. Sentence25: Is there any other options that we can look into? Sentence26: Shoot. Well, okay, how about two nights? Sentence27: I apologize. There is no hotel or guesthouse in the south with free parking that can accomodate you with those details. A different day or a shorter stay may work. Sentence28: I'm sorry to tell you that there is no hotel in any area of town that meets those requirements and can accomodate 6 for 3 days from Sunday. Sentence29: Are you certain there is not either a guesthouse or hotel in the south with free parking for 2 or 3 nights Sunday for 6 people? Sentence30: I need 6 tickets please. Question: Who has spoken the sentence 22? (A) User (B) System

Ex Output:
Answer: (A) User