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

Let me give you an example: Sentence1:i need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
The answer to this example can be: Answer: (A) User
Here is why: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

OK. solve this:
Sentence1: Thank you so much! Sentence2: I have two trains that will get you in by 9:45. What is the earliest you want to leave? Sentence3: Do you have any location in mind? Sentence4: Any location is fine, Ill go with whatever you recommend, please book me for 7 people on monday at 11:00 Sentence5: Departing from Cambridge and going to London Liverpool Street. Leaving Wednesday and want to arrive by 09:45. Sentence6: TR2835 will arrive by 09:27 how many tickets do you need for the train? Sentence7: A table has been booked for you at graffiti. Sentence8: You're welcome. Do you need anything else today? Sentence9: Nope, that'll be all for today. Thanks! Sentence10: Thank you for calling and have a great trip! Goodbye. Sentence11: Where are you travelling to and at what time? Sentence12: Oh, it's the same group of people from the restaurant. Can I get the reference number? Sentence13: I'm looking for a posh British restaurant to take my bird to, know of one? Sentence14: May I have the reference number? Sentence15: I would like the train that gets me there close to 9:45. Sentence16: The reference number is ABNPDU1B Sentence17: Booking was successful, the total fee is 116.2 GBP payable at the station . Reference number is : XZCDEB01 . Sentence18: I also need a train leaving on wednesday. Question: Who has spoken the sentence 6? (A) User (B) System
Answer:
Answer: (A) User