Hello, Donna Scott here.
user
Hello, how can I support you today?
assistant
Due to heavy rainfall in Phoenix, AZ - PHX, I want change my existing  reservation.
user
Sure, Please wait for a while.
assistant
Ok.
user
Thank you for waiting, No reservation is found on your specified name.
assistant
Ok, not an issue. Thanks for your information.
user
Thank you for choosing us.
assistant