You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Stephanie Brown.

ASSISTANT: How can I help you?

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

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, we did not find any active reservation on your name.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for availing us.