Hello.
user
Hello. How can I aid you?
assistant
Please help me to change an existing reservation as my interview got postpone due to some technical issues.
user
Sure, I can help you.
assistant
Thank you.
user
May I know your name to trace your details?
assistant
I am Ryan Wilson.
user
Please wait a while.
assistant
Sure.
user
 Thank you for waiting, but I am sorry to say that, there is no active reservation found with your name in our database to change it.
assistant
Not a big issue, anyhow thank you very much for checking the reservation status.
user
Thank you for choosing us.
assistant