You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Deborah Adams.

ASSISTANT: How can I assist you?

USER: Can you please help me in changing my existing reservation? As my meeting got postponed at New York.

ASSISTANT: I will help you out from this.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no active reservation found on your name to change.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for opting our service.