You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Can you aid me to change my reservation due to emergency?

ASSISTANT: Sure, I am gleeful to help you with that. May I know your name please?

USER: Dorothy Rodriguez here.

ASSISTANT: Please wait for a while, let me check your previous reservation status.

USER: Ok.

ASSISTANT: Thank you for waiting.

USER: You are welcome.

ASSISTANT: There is no reservation found on your name in our database to change.

USER: Thank you.

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