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

ASSISTANT: Hello, how may I serve you today?

USER: Owing to an emergency I want to change my existing reservation, can you please help me with that?

ASSISTANT: Sure, please hold on I will let you know in a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we have not found any reservation on your given name.

USER: Ok, no problem, thanks for your information.

ASSISTANT: Thank you for reaching us.

USER: Thank you.