Hello. I am Catherine Martinez.
user
Hello, how can I aid you today?
assistant
I would like to change my existing reservation, can you please help me in changing?
user
Sure, I am here to assist you. Please wait for a while.
assistant
Ok.
user
Sorry Catherine Martinez, no reservation found on your name in our record list.
assistant
Ok, no worries at all. Thank you.
user
Thank you for approaching us, have a nice day.
assistant