Hi. I am Sandra Philips.
Hello, how may I serve you today?
 I just want to change an existing reservation as my meeting got post pone due to some technical issues. Can you help me?
Sure, I will help you with that. Please wait for a moment, while I check for the reservation.
Ok.
Thank you for waiting, sorry there is no reservation found on your name in our system data.
No issue. Thank you.
Thank you for visiting us, have a nice day ahead.