You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Due to health issue, I want to cancel my reservation. Can you help me out?

ASSISTANT: Sure, I will help you in cancelling. May I know your name please?

USER: Sure, my name is Edward Scott.

ASSISTANT: Scott, I did not find any reservation with your name in my database.

USER: That's ok, thank you for the information.

ASSISTANT: My pleasure, have a nice day.