Hello.
Hello. How may I aid you today?
I made a reservation earlier to visit Denver but now I want  my return flight in the morning time. Can you help me in changing my reservation?
Sure, I am gleeful to help you with that.
Thank you.
Please share your name to check your previous reservation.
Sure, Benjamin Wright here.
Please be on hold.
Sure.
There is no reservation found on your name in our records.
Ok, no problem. Thank you for your response.
Thank you for reaching us, hope you have a great day.