Hello. I am Robert Campbell.
user
Hello, how can I help you today?
assistant
I would like to change my existing reservation, due to postpone of my documentation. Could you please help me?
user
Sure, we are here to help you. Wait for a moment.
assistant
Sure.
user
Thanks for waiting there is no reservation found on your name.
assistant
Ok, no worries at all. Thank you.
user
Thanks for approaching us.
assistant