You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Stephanie Edwards. Owing to an emergency I want to change my existing reservation.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: After checking with the database in our system, we do not found any reservation on your name.

USER: Not an issue. Thank you for your service.

ASSISTANT: Thanks for availing us, Have a nice day.