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

Ex Input:
Sentence1: kohinoor. i want to book a table for 2 people at 16:45 on Thursday Sentence2: Nope, I'm all finished for today. Thanks so much, goodbye now! Sentence3: Sure. Booking was successful. The table will be reserved for 15 minutes. Reference number is : X9AVZ8EI . Can I help with anything else today? Sentence4: Absolutely. What is the name of the restaraunt you are interested in? Sentence5: You are very welcome, bye! Sentence6: I need to find some information in a particular restaurant. Are you able to look up a specific place? Sentence7: I also need a Thursday train. Sentence8: Depart from Ely and would like to arrive by 13:00 in Cambridge. I need to book it for 2 people I also need a reference number. Thanks Sentence9: What location will you depart from and where are you headed? Sentence10: Sure thing, it's booked and your reference number is PWSVK4XQ . Do you need more help? Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: My destination is cambridge. Sentence2: What day will you be traveling? Sentence3: Hey. I'm looking for a train from stansted airport. Sentence4: What is your destination ? Sentence5: I plan to go on tuesday. Sentence6: How many tickets would you like? Sentence7: There are trains departing every hour. TR5077 would get in in at 8:52, does that work for you? Sentence8: That sounds perfect. Can I get the reference number from the booking? Sentence9: I would like 4 tickets. Sentence10: Booking was successful, the total fee is 40.4 GBP payable at the station. Reference number is : WWW231NO . Is there anything else you need? Sentence11: There are several. Do you have a time you need to travel specifically? Sentence12: The train should arrive by 10:00 if at all possible. Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: sure its 01223364222 Sentence2: Is there anything more I can help you with? Sentence3: I'm sorry, there are no hotels that meet your criteria. Would you like to try searching for something else? Sentence4: Unfortunately this guest house doesn't offer parking, would you like me to search for similar hotels that offer parking? Sentence5: Have a good day! Sentence6: the a and b guest house is a great place Sentence7: That is all I need. Goodbye. Sentence8: Ok. Thanks. All set. Sentence9: Yes. May I have the phone number? Sentence10: Sorry for the confusion, I have that booked for you, your reference # is: HQSOZLWH . Can I help you with anything else today? Sentence11: how about one that is in the type of nightclub. Sentence12: There's the club ballare which is rather nice. Would you like some more information about it? Sentence13: i need a place to stay in Cambridge thats 4 star with free wifi Sentence14: There are seriously no 4 star hotels with free wifi and free parking in all of Cambridge? I'm pretty sure there should be. Sentence15: Great! Could you book it for 5 people and 3 nights starting from wednesday? Sentence16: Do this hotel offer free parking also? Sentence17: Yes I do. When you find it, I need 3 nights for 5 people starting on Wednesday. I'll take the reference number too. Sentence18: The arbury lodge guesthouse is 4 stars, it has internet it is in the moderate price range Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:

Answer: (A) User