You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: My name is Kenneth Taylor. I am not feeling well, please help me to change my existing reservation.

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

USER: Sure.

ASSISTANT: There is no previous reservation available under your name.

USER: Not an issue, thanks for your information.

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

USER: Most Welcome.