Hi.
user
Hello. How can I aid you?
assistant
I would like to change my existing reservation, can you please help me in changing?
user
Sure, I can help you. May I know your name?
assistant
Amanda Nelson here.
user
Give me a minute.
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
Ok, no worries at all. Thank you.
user
Thank you for approaching us.
assistant