Hi.
user
Hello. How may I assist you?
assistant
I have to change my reservation dates in my ticket, can you please help me in changing my existing reservation?
user
Ok, may I know your name to check your reservation?
assistant
I have reserved my flight ticket with name Patricia Hill.
user
Please wait for a moment, while I search for your reservation.
assistant
Ok, take your own time.
user
Thanks for your time, there is no reservation found under your name to change it.
assistant
Ok, fine thank you for checking.
user
Welcome, have a good day.
assistant