You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Stephanie Carter.

ASSISTANT: Yes Carter.

USER: I planned a trip to Seattle, but I want to change my existing reservation due to financial issues. Can you help me?

ASSISTANT: Sure, I will help you with that, please hold on for a moment to check your reservation status.

USER: Ok.

ASSISTANT: Carter, I did not find any reservation with your name in my database.

USER: That's ok, thank you for your information.

ASSISTANT: It's my pleasure.