You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, let me know your name to check your reservation details.

USER: I mentioned my name.

ASSISTANT: Thank you. Please wait for a while, let me check your reservation status.

USER: Sure.

ASSISTANT: Sorry, we did not find any reservation details by your name in our system.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.