You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Christine Lopez here.

ASSISTANT: How may I help you?

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

ASSISTANT: Sure, wait for a moment. I will let you know your reservation status.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting. But I am sorry to say that there is no reservation on your name to change it.

USER: It's ok, thank you.

ASSISTANT: Thank you.