Hello.
user
Hello, how may I assist you today?
assistant
I want to change an existing reservation, so please help me in changing the reservation.
user
Sure, may I know your name?
assistant
Myself Robert Collins.
user
Ok, please wait for a while.
assistant
Ok.
user
Thanks for waiting, there is no reservation found on your name.
assistant
Not an issue. Thank you.
user
Thank you for reaching us.
assistant