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: I have three different choices depending on when you want to arrive. I've got one arriving by 24:23. Would that work? Sentence2: Sure! The postcode is cb11ln. Is there anything else I can help you with today? Sentence3: We have many options that meet your needs. Do you have a certain destination in mind? Sentence4: You might like Broughton House Gallery. Would you like more information about this? Sentence5: There are over 20 museums in the city, is there a particular part of town you'd like to be in? Sentence6: Yes please may I have their postcode? Sentence7: No I think that's all I need for now, thank you! Sentence8: Thank you. Can you tell me what kinds of museums there are in that area? Sentence9: You're welcome, have a wonderful visit! Sentence10: I am looking to go to cambridge and leave after 21:00 please. Sentence11: That would be great, I'd like to book for 1 person please. Sentence12: Your ticket has been booked, reference number is D77TJZNF Sentence13: No, I do not have any preference on area. What would you suggest? Sentence14: Can you help me get a train ticket leaving birmingham new street on sunday please? Question: Who has spoken the sentence 9? (A) User (B) System
Answer:
Answer: (B) System