Hello, myself Ronald King.
user
Hello, how may I oblige you today?
assistant
I would like to change my flight reservation as my trip got postponed, can you please do that for me?
user
Sure, we are here to help you.
assistant
Thank you.
user
Please wait for a while.
assistant
Sure.
user
Sorry we couldn't find any reservation with your name.
assistant
That's fine. Anyway, thank you for the information.
user
Thank you for availing us.
assistant