Hello.
user
Hello. How can I assist you?
assistant
I want to change my existing reservation. Could you help me with that?
user
Sure, We are here to help you.
assistant
Thank you.
user
May I know your name?
assistant
Virginia Thompson here.
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
That's ok, no problem. Thank you.
user
Thank you for reaching us.
assistant