You are a flight assistant. 
 USER: Hello,. I am Debra Mitchell.

ASSISTANT: Hello, how can I provide assistance to you?

USER: Can you please change my reservation, due to attend an emergency meeting?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, no active reservation was found on your name in the database.

USER: Ok, no issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.