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

[EX Q]: 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 A]: Answer: (B) System

[EX Q]: Sentence1: Your booking is complete, a black toyota will pick you up. The contact number is 07768938666. Sentence2: I need to leave after 07:45. Sentence3: I am going to allenbell Sentence4: Thats perfect that you for your help Sentence5: You're welcome. Do you have any other concerns? Sentence6: I don't. I appreciate your help. Goodbye for now. Sentence7: OK, I'm glad I was able to assist you. If there ever is anything else don't hesitate to contact us. Sentence8: I'd love to help! Where are you going? Sentence9: And when would you like to leave or arrive by? Sentence10: Hi, I need to get a taxi out of kohinoor. Question: Who has spoken the sentence 9? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Hi, I've just started planning a trip and the train system is so confusing, can you help me? Sentence2: anytime after 13:00 Sentence3: Stansted Airport. And I'm headed to Cambridge. Sentence4: The trainID is TR4096 for the train departing the stansted airport and going to Cambridge on Monday. It will arrive at 17:52. Sentence5: Absolutely. Where will you be departing from? Sentence6: At what time do you want to leave ? Sentence7: I don't need it booked, just please forward me the train ID and arrival time. Sentence8: What day will you travel on? Sentence9: We have one on Monday at 5:24,would you like me to book it for you ? Sentence10: I'll be travelling on Monday. Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]:
Answer: (A) User