You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Pamela Lewis here.

ASSISTANT: Pamela Lewis, how may I help you?

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

ASSISTANT: Sure, I will help you in rescheduling your itinerary dates. Before that, let me check your reservation status.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: No problem, thank you.

ASSISTANT: You are welcome and thank you for choosing us.