Hello.
Hello, how may I assist you today?
I need to change previous reservation due to my planned programme got shifted to another dates so please help me with that.
Sure, I will help you in this.
Thank you.
May I know your name please for further process?
Sure, please check the reservation with the name of Melissa Martinez.
Ok, please wait for a mean while.
Sure, take your time.
Sorry Melissa, there is no reservation found as per your name to change your reservation.
That's ok fine. No problem, anyway thank you for your time.
You are welcome always.