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

Sentence1: The area doesn't matter. I would like free wifi though, if possible. Sentence2: Not really, how about 4 star? Sentence3: Do they also have free parking? Sentence4: I have many options. Do you have a preference for the area you would like to stay in. Sentence5: There are several moderate 4-star places to stay throughout town, but they are all guesthouses. Would a guesthouse work for you? Sentence6: acorn guest house does have free parking,would you like that one? Sentence7: Dojo Noodle Bar is a nice cn I book you a table ? Sentence8: I'm looking for a moderately priced, 1-star place to stay. Sentence9: No, I don't need a hotel booking at this time. I'd like to find a place to dine on Sunday. Sentence10: Unfortunately we do not have any moderately priced 1 star hotels in Cambridge. I'm sorry! Cityroomz has 0 stars in the centre, does that work? Sentence11: Would you like me to reserve the acorn guest house for you? Sentence12: Yes. I also need to find a place to dine that is in the center and the same price range as the hotel. Question: Who has spoken the sentence 9? (A) User (B) System
Answer: (B) System

Sentence1: I am also looking for Cambridge Contemporary Art. Sentence2: Can you give me their entrance fee and phone number? Sentence3: Maybe. What is the star rating and price range on that hotel? Sentence4: Are there any available rooms in the Autumn House? Sentence5: You're welcome. Enjoy your stay. Sentence6: You are all set. Your taxi would be a red lexus and you can contact them at 07614169632. Is there anything else I can help? Sentence7: no problem. Their phone number is 01223324222 and the entrance fee is free. Sentence8: Sure, I have found it for you. Is there anything you want to know about? Sentence9: That's all i need. Thank you so much for the help! Sentence10: Autumn house has a guesthouse. When are you looking to stay? Sentence11: it has four stars and its cheap Sentence12: Awesome. Can you also help me to book a taxi from the hotel to the attraction? I want to leave the hotel by 24:45. Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System

Sentence1: No, that's all I need today. Thank you so much. Sentence2: I need to leave after 09:15, please. Sentence3: How about bridge guest house? They are moderately priced with free wifi and parking and 3 stars. Sentence4: Absolutely! What time do you need to arrive by? Sentence5: Your train has been booked for 6 people. The train ID is TR2083. Your reference number is WCVY3PV1 . Sentence6: You have a few options available if you're traveling from bishops stortford to cambridge. There is a train leaving at 09:29, Does that work for you? Sentence7: That sounds great. Can I book 2 nights for 6 people starting on Friday. Sentence8: Thanks. I'm also looking for information on moderately priced hotels with free wifi. Sentence9: No I do not. Sentence10: Do you have a preferred area of town? Sentence11: I have you booked, the reference number is VM1KGTU7, can I help with anything else? Sentence12: Great. Let's book it for 6 people. Give me the reference number. Sentence13: I'm sorry. Nothing is coming up for your specifications. I need you to narrow down your info. Sentence14: The place must have a 3 star rating and include parking. Sentence15: You have 17 options that meet that criteria. Would you like a recommendation or do you want to narrow your options down? Sentence16: Well lets try again and book me in what you choose for 2 nights from Friday for 6 people. Sentence17: Thank you for calling. Enjoy your trip! Goodbye! Sentence18: Can you help me find a train that leaves on friday departing from bishops stortford? Question: Who has spoken the sentence 15? (A) User (B) System

Answer: (B) System