You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Kevin Wilson here.

ASSISTANT: How can I serve you for the day?

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

ASSISTANT: Ok, please wait for a while. I will check your status and revert you.

USER: Sure.

ASSISTANT: Thanks for waiting, we did not find any active reservation on your name in our records.

USER: No problem, thank you.

ASSISTANT: Thank you for opting us.