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

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
Answer: (B) System

Sentence1: Yes I was able to do this and the reference number is J7S65ALV . Sentence2: Ok. Thank you and good bye. Sentence3: i need information of a hotel called allenbell. Sentence4: I am also looking for an entertainment place. Sentence5: Sure, great guesthouse on the east side. 4 stars but still cheap. Sentence6: Would you like the attraction in the same area as the guesthouse? Sentence7: My favorite is Nusha. It's in the south. Unfortunately, I don't have the information on their entrance fee, but I can give you their phone number, if you like. Sentence8: That would be fine. I think that's all I need. Thanks for your help! Sentence9: That doesn't really matter. What's the entrance fee and area for your favorite entertainment place? Sentence10: Could you make a reservation for 8 people for 5 nights starting Tuesday? I will also need the reference number. Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User

Sentence1: I would like it starting Thursday for 8 people for 5 nights. Sentence2: We have three choices, any other preferences? Sentence3: How many nights and for how many people? Sentence4: Yes. The hotel should be 4 stars and located in the west with free parking please. Sentence5: As long as it is a hotel, I would like to book it. Sentence6: Of course, do you need anything specific? Sentence7: Hello, can you help me with my plans as far as finding a place to stay? Sentence8: I will need the day you want to arrive. Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User