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

Ex Input:
Sentence1: You are booked for a red lexus with the contact number 07866626052. Sentence2: I'm going to loch fyne. Sentence3: Thank you. I am now finished. Sentence4: Sure! when would you like to arrive? Sentence5: Great! And what is your destination? Sentence6: I would like to arrive by 01:15. Sentence7: I'm glad we could help. Have a good day. Sentence8: Please help me reserve a taxi from saint catharine's college Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: 5 nights, please. Sentence2: Sure. Please book five tickets for me and reply with the reference number. Sentence3: It's booked and your reference number is LFE8G8CE . The address is 154 chesterton road and postcode is cb41da. Anything else I can do for you? Sentence4: Where will you be departing from? Sentence5: Enjoy your visit. Please give us a call if you need further assistance. Sentence6: 5 people starting on Sunday. Sentence7: Yes, what area would you like to stay in? Sentence8: Great, let's book that one. Please send me the address, postcode and reference number. Sentence9: Booking was successful, the total fee is 22 GBP payable at the station. Reference number is : BUBQRD4R . Sentence10: Yes I also need a train that leavers after 12:00 going to ely. Sentence11: There is the Acorn guesthouse in the moderate price range and 4 stars. It also has free wifi and parking. Sentence12: There is no train leaving 12:00, but train TR5484 leave 13:50 do you want to adjust your time? Sentence13: Don't care. but I'd like a place that's Moderately priced and offers free WiFi. Sentence14: East London. Thanks Sentence15: How many days do you plan on staying? Sentence16: That is all I need, good bye. Sentence17: How many people would you like it booked for and for what days please? Sentence18: Hi, I am hoping to find a 4 star hotel room. Can you recommend one for me? Question: Who has spoken the sentence 9? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: yes would you like me to book it for you ?, Sentence2: No, I just need the area and the post code please. Sentence3: Sorry I messed up before. I actually did want an expensive restaurant. Is Kitchen and Bar expensive? Sentence4: No any area is fine with me I just need the area and postcode of a good restaurant. Sentence5: Thanks for your time. That is all for now. Sentence6: the total fee is 116.2 GBP payable at the station . Reference number is : RTTDSKXC Your train leaves at 07:59 Sentence7: Thanks I also need a trin from cambridge to london liverpool street on firday Sentence8: I'm sorry, I wish there were some Caribbean places here, but there isn't. Sentence9: I'm looking for some caribbean food. Sentence10: You are welcome, enjoy your stay in cambridge. Sentence11: I would like to arrive by 11:00. Can you choose the train with the closest arrival time to 11:00 and book it for 7 people? Then give me the reference number Sentence12: I need a train leaving on friday from cambridge can you help me get a ticket? Sentence13: It is in the centre, and the postcode is cb23qf Sentence14: Yes, there are some options. Was there a particular price range or area of town you were looking for? Sentence15: Well, how about a gastropub? Sentence16: what time do you need to arrive by? Sentence17: I'd be happy to help you with that, just let me know your destination. Sentence18: Kitchen and Bar is a great gastropub located in the centre of town. The passcode is cb12qa. Is there anything else I can help you with? Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:
Answer: (A) User