Hello, I am Richard Miller.
Hello, how can I serve you now?
Due to an emergency meeting, I want to change my reservation. Can you help me with it?
Sure, I can help you with it. Please wait, I will check your reservation.
OK.
Thanks for waiting. I did not find any reservation on your name to change.
No problem, I will try with another airline.
Thanks for approaching us, have a nice day.