You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I have to change my previous flight ticket booking that the planned trip got postponed to another dates, can you please help me with changing?

ASSISTANT: Sure, may I know your name?

USER: Thank you for accepting my request and my name is Pamela Hall.

ASSISTANT: Please wait, I will check the reservation on your name and get back to you.

USER: Sure, I will be waiting for your response.

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

USER: Not an issues with that one, thank you for checking my reservation status.

ASSISTANT: Thank you for contacting us.