Hi.
Hello. How may I help you?
I am Dorothy Phillips. Can  you please help me in changing my flight ticket modification?
, please wait for a while I will check your status of reservation whether it's existed or.
Sure, take your time. I will wait for your response.
Thanks for your time, there is no reservation found with the name Dorothy Phillips.
Ok, no problem with that one, thank you for your immediate response.
Welcome, have a good day.