You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I amend you?

USER: I am Kevin Williams. Will you assist me in changing my reservation as my plan to attend  for a film festival got postponed?

ASSISTANT: Sure, I am here to help you.

USER:  Thank you.

ASSISTANT: Please wait for a while, I will check your reservation.

USER: Sure.

ASSISTANT: Thank you for your help. I am here to inform you that, there is no reservation found on your name.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for reaching us.