You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My interview has been postponed due to some issues. Can you please change my existing reservation?

ASSISTANT: Sure, I can help you. Let me check the status and revert you. May I know your name?

USER: I am Deborah Gonzalez.

ASSISTANT: Thank you. Unfortunately there is no reservation found on your name.

USER: Ok, it's not an issue. Thanks for your response.

ASSISTANT: Thank you for reaching us.