You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

USER: Please cancel my reservation because I am not feel well.

ASSISTANT: Sure, we are here  to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Myself Eric Lee.

ASSISTANT: Please wait for a while.

USER: Ok, I will wait.

ASSISTANT: Sorry we could not find any reservation with your name.

USER: Ok, not an problem. Any way thank you.

ASSISTANT: Thank you for opting us.