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

Sentence1: Thank you for using our system today! Sentence2: I am coming to cambridge and heard about a bed and breakfast called finches. Sentence3: Yes, I would like to arrive before 5:00 PM. Sentence4: It is a lovely guesthouse on the west end boasting cheap prices and a 4 star rating! Would you like their address or phone number perhaps? Sentence5: I actually would like to book the hotel for 7 people starting on Tuesday for 3 nights. Sentence6: I'll be departing from cambridge and going to norwich. Sentence7: I apologize, I actually need to leave after 16:30 Sentence8: No problem, but I'm afraid there are no trains leaving after 16:30 and arriving by 17:00. Might I suggest TR7047, which leaves Cambridge at 16:36 and arrives in Norwich by 17:55? Sentence9: Is there a time you would like to arrive before? Sentence10: Can you also help me find a train on Fridya? Sentence11: Train TR7747 leaves at 15:36 and arrives in Norwich at 16:55. Would you like me to book you tickets? Sentence12: Thank you, no that will be all. Sentence13: OK, the booking for successful. The total is 17.6 GBP and the reference number is MIMOPEN1 . Is there anything else I can do for you? Sentence14: Yes, that sounds great. Please book that for me. Sentence15: I was able to book your party of 7 at Finches bed and breakfast for 3 nights. Your reference number is 4R76GWVJ . Can I help you with anything more today? Sentence16: Of course. There are many available Friday. Where will you be traveling to and from? Question: Who has spoken the sentence 7? (A) User (B) System
Answer: (B) System

Sentence1: It's cb12bd. Anything else I can get you? Sentence2: How about something in the south and moderate price range? Sentence3: I'll take Rice House, what's the postcode? Sentence4: There are 3 cheap chinese restaurants in the centre of town: Charlie Chan, Rice House, or Golden House. Would you like me to book any of these? Sentence5: Sure let's try chinese food. Sentence6: I was not able to find any restaurants matching your requirements. Sentence7: I'm still not finding anything. Would you like me to search a different part of town or a different food type? Sentence8: You're welcome. Have a great day! Sentence9: That's all. Thank you. Sentence10: I am looking for a cheap gastropub restaurant in the centre of town Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User

Sentence1: Is there a specific type of attraction you'd like? Or would you like for me to make a recommendation? Sentence2: Great saint mary's church is located at cb23qp and it is 2 pounds to enter. Sentence3: You're welcome, have a great day. Sentence4: The travel time is 28 minutes. Can I help you with anything else? Sentence5: Any trains running on thusday? Sentence6: Can you make a recommendation and proved the entrance fee and postcode? Sentence7: Yes I have 404 trains that day,where will you be leaving from? Sentence8: I have train TR7966 leaving at 5:40 and arriving at 6:08. Would you like to book that? Sentence9: I need some place to go in the centre. Sentence10: Where will you be going? Sentence11: No tickets right now, thanks, but what's the total travel time for that train? Sentence12: Great. Thank you. That's all. Sentence13: I am going to the Standsted airport and would like to arrive by 08:00. What would the travel time be on that? Sentence14: I'm leaving from Cambridge. Question: Who has spoken the sentence 6? (A) User (B) System

Answer: (A) User