You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

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
Solution: Answer: (A) User
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

New input: Sentence1: i want tickets for 3 people and give me reference number. Sentence2: I don't care where- just a museum. Sentence3: I am leaving from peterborough going to cambridge Sentence4: Can you help me find a train leaving on sunday after 12:00. Sentence5: Yes can I get the info please? Sentence6: It is located at 5 Greens Road in the centre area of town. The phone number is 01223902168. The admission is free. Sentence7: Train number TR9345 leaves Peterborough at 12:19 and arrives in Cambridge around 13:09. Would you like a ticket for this train? Sentence8: Thank you and what is the postcode? Sentence9: cambridge artworks would suit your needs. Can I get you more info on it? Sentence10: Cambridge Artworks is in postcode cb13ef. Do you need anything else? Sentence11: I'd be happy to help you find something. Can you tell me where you will be departing from? Sentence12: No thats all I needed. Thank you! Sentence13: im also looking for a place to go in town Sentence14: We have many fantastic attractions! Would you like to narrow it down by area or type? Sentence15: You're welcome. Have a great day! Sentence16: Your reference number is : OYYUXXUM . Can I help with anything else? Question: Who has spoken the sentence 1? (A) User (B) System
Solution:
Answer: (B) System