Hello.
Hello, how may I help you today?
I am David Lewis here. I would like to change my previous travel dates. Can you please help me with changing my existing reservation?
Sure, I will help you with that.
Thank you for considering my request.
Please wait for a moment.
Sure, I will wait.
Thank you for waiting, sorry there is no reservation found on your name in our system data.
Not a big problem, anyway thank you for the information.
Thank you for reaching us, we hope see you again.