You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, we are here to help you. May I know your good name please?

USER: Alexander Davis here.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, there is no active reservation found in your name.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.