You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Ronald Miller here.

ASSISTANT: Yes, Ronald.

USER: Owing an emergency, I want to cancel my recent reservation. Can you please help me?

ASSISTANT: Sure, I will help you out. Please wait a moment. Let me check the previous reservation details.

USER: Ok, take your time.

ASSISTANT: Sorry Miller, no reservation found on your name.

USER: That's ok, thank you for checking.

ASSISTANT: Ok, thank you for reaching us.