You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Paul Brown here.

ASSISTANT: How can I help you today?

USER: My business meeting has been postponed, so I want to reschedule my itinerary dates.

ASSISTANT: Sure, we are here to help you with this.

USER: Ok.

ASSISTANT: Please hold for a moment, let me check your previous reservation status.

USER: Sure.

ASSISTANT: There is no active reservation found with your name in our database.

USER: No problem, thank you.

ASSISTANT: Thank you for contacting us.