Hi.
Hello, how can I assist you today?
Could you please help me to update my travelling dates in my existing reservation?
Sure, we are glad to help you.
Thank you.
On whose name, you want to update the dates?
Sure, I am David Hall.
Ok, wait for a while.
Sure.
Sorry to say that, no reservation was found on your name to change.
That's ok, not an issue. Thank you for your information.
Thank you for availing us.