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

Ex Input:
Sentence1: I would like it to serve food from the americas. Sentence2: 'Hotel du vin and bistro' and 'galleria' Sentence3: Certainly, can I book your table at hotel du vin and bistro or would you prefer a table at galleria? Sentence4: i have booked you a taxi, red tesla, phone number is 718 850 4433. Sentence5: Thank you have a great day. Sentence6: Do they offer free parking? And can I get the phone number for them please. Sentence7: There are 2. Did you want me to book one of them? Sentence8: Your table has been booked and is reserved for 15 minutes, reference number is M32YYIJN . Can I help you with anything else? Sentence9: Yes, there is free parking at Hamilton Lodge. The phone number is 01223365664. Sentence10: How about european food? Sentence11: Is it possible to arrange a taxi to take me from the hotel to the restaurant by 16:00? Sentence12: I have the information pulled up. What would you like to know about it? Sentence13: I need to book a table for 3 people at 16:00 on friday at galleria Sentence14: I would like to book a table for three on Friday, at 16:00. Sentence15: I'm also looking for a hotel called hamilton lodge. Sentence16: There are many moderately priced restaurants that meet your criteria, what type of food are you looking for? Sentence17: What are the names? Sentence18: Thank you that's all that I needed Sentence19: I am looking for a restaurant in the moderate price range in the centre of town. Sentence20: Unfortunately I could not find any restaurants serving food from the Americas in the moderate price range. Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Okay, the TR8944 leaves at 15:39 and arrives by 17:07. Would you like me to book tickets for you? Sentence2: There are 10 trains leaving fro Liverpool Street on Thursday. Did you have a departure time in mind? Sentence3: Okay I have booked you and your reference number is WLUOQKEV . Sentence4: rosa's bed and breakfast is in the cheap price range Sentence5: I'm looking for a train departing from london liverpool street leaving on thursday. Sentence6: Do you need a taxi? Sentence7: Goodbye, and thanks again. Sentence8: Yes, I don't want to leave for Cambridge until 15:00 at the earliest. Sentence9: Sure thing. Thanks for letting us help you today! Sentence10: Thank you. I also need a hotel in the south. Sentence11: then thanks for inquiring with us. Sentence12: I don't need a taxi, thanks for asking Sentence13: No price range but I do want a 4 start. Sentence14: Yes, for 6 people. Sentence15: What price range are you interested in? Sentence16: That sounds great. I'll need a reservation for 6 people for 4 nights on Thursday. Sentence17: I've gone ahead and booked that for you. Your Reference number is : EUZ34KY9 . Is there anything else I can assist you with today? Sentence18: No, that takes care of everything I need. Thanks! Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I am sorry, I have not found any Austrian restaurants in the area. Would you like to look for a different cuisine? Sentence2: No, you have been most helpful with the restaurant and lodging. Thank you. Goodbye. Sentence3: Booking was successful. The table will be reserved for 15 minutes. Reference number is BVTK5H3X . Do you need assistance with anything else? Sentence4: Great, thanks! And yes, I'm also looking for a place to stay, also located in the centre and with free wifi. Sentence5: No how about trying to look for Chinese food? Sentence6: No, thank you. Sentence7: Thank you for all your help. Sentence8: I would like one that is moderately priced. Sentence9: Is there a certain price range or rating you would like? Or would you like me to make a recommendation? Sentence10: How about the gonville hotel? It has free wifi and parking. Sentence11: That would be fine please book that for 4 nights on the same day and for the same people. Sentence12: Will that be all for today? Sentence13: There are 17 options for chinese, anything i can do to narrow that down for you? Sentence14: Booking was successful.Reference number is : MP576WVK . Sentence15: Are there any restaurants in the centre that offer Austrian cuisine? Sentence16: Can I help you with anything else today? Sentence17: No particular price range. Yes, I would appreciate a recommendation. Sentence18: That sounds great. Can you make a reservation for Thursday for 8 guests at 16:45 please? Sentence19: You're welcome. Have a great day! Sentence20: There are three Chinese places in the centre with a moderate price range. May I suggest The Jinling Noodle Bar? Question: Who has spoken the sentence 11? (A) User (B) System

Ex Output:

Answer: (B) System