You are a flight assistant. 
 USER: Hello. I am Stephanie Nelson.

ASSISTANT: Hello, how can I support you?

USER: Due to an emergency meeting, I want to change my reservation. Can you help me with it?

ASSISTANT: Sure. Please, wait for a while.

USER: OK.

ASSISTANT: Thank you for being patience, there is no reservation found on your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.