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 been hurt, I need to find a hospital nearby, and I need one with an infusion department. Sentence2: Please call an ambulance. Sentence3: Are you sure you don't want any more assistance? Sentence4: Yes, that is all, thank you. Sentence5: Ok, let me know if I can help you with anything else. Sentence6: Addenbrookes Hospital has infusion services. They can be reached at 01223245151. Sentence7: Don't worry about it. Sentence8: I am unable to do that. I can phone the police, call you a cab, or book you an appointment at the hospital. How can I help you? Question: Who has spoken the sentence 7? (A) User (B) System
Answer:
Answer: (B) System