You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Susan Jackson here.

ASSISTANT: How can I assist you today?

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

ASSISTANT: Sure, I am here to help you. Please hold on for a moment.

USER: Sure.

ASSISTANT: Sorry Susan, I did not find any reservation by your name.

USER: It's ok, thank you.

ASSISTANT: My pleasure, have a nice day.