You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you please help me in changing my existing reservation to Seattle? As my meeting got postponed at Seattle.

ASSISTANT: Sure, may I know your name to check for the status.

USER: My name is Edward Turner.

ASSISTANT: Please allow me a moment to check for your status.

USER: Sure, take your own time.

ASSISTANT: Thank you for waiting. Sorry to say, there is no active reservation have been found under your name in our database to amend it.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for reaching us.