You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

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

ASSISTANT: Sure, I am here to help you with this. May I know your good name please?

USER: Amanda Williams here.

ASSISTANT: Ok, wait for a moment please.

USER: Sure.

ASSISTANT: Sorry to say, that there is no active reservation found as per your name to change it.

USER: No problem, thank you.

ASSISTANT: You are welcome.