You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Edwards Green. I am planning to cancel my recent reservation, due to health issue. Can you please cancel my ticket?

ASSISTANT: Sure, I am here to help you. Please wait for a moment to check your details.

USER: Thank you. Sure, I will wait for your reply.

ASSISTANT: No reservation found on your name in my database.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for reaching us, have a nice day.