Hello.
user
Hello, how can I support you?
assistant
My visa has been postponed. For this I want to change my reservation with the name of Elizabeth Wight.
user
Sure, Plesae wait for a moment.
assistant
Ok.
user
Thanks for waiting, there is no reservation found on  your name.
assistant
No, problem. Thank you for aiding me.
user
Thank you for reaching us.
assistant