You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Katherine Perez here. My client meeting has been postponed, so I want to reschedule my itinerary dates.

ASSISTANT: Sure, please allow me a moment to check for the status.

USER: Sure.

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

USER: No problem, thank you.

ASSISTANT: Sorry for the inconvenience caused, thank you for reaching us.