Hello.
Hello, how may I help you today?
I am Gary Edwards. Due to my health problem I want to change my reservation, could you please help me to change my reservation?
Sure, I will help you to change your reservation. Please wait for a moment, while I check for the reservation.
Ok, I will wait.
Thank you for waiting, sorry there is no reservation found on your name in our system data.
Ok, no problem. Thank you for your service.
Thank you for visiting us, have a nice day ahead.