You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Owing to an emergency I had to request for this change reservation.

ASSISTANT: Sure, I am here to help you. May I know your good name?

USER: My name is Donna Edwards.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, No reservation was found on your given name.

USER: Thank you.

ASSISTANT: Thank you for reaching us.