You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

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

ASSISTANT: Ok, I will help you with that.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry, there is no flight ticket been reserved on your name as per the records.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing our agency.