You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I am James Moore, I want to cancel my reservation due to health issue.

ASSISTANT: Sure, I will help you. Please wait a moment to check your previous reservation.

USER: Thank you.

ASSISTANT: We regret that, there is no reservation with your name in our records.

USER: It's ok, anyway thank you for the help.

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