You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

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

ASSISTANT: May, I know your good name?

USER: Justin Miller here.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: I have checked in reservation list to change your ticket, but could not find any reservation with your name.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.