Hello. I am Margaret Walker.
user
Hello, how can I help you today?
assistant
I want to change my existing reservation, can you please help me with this?
user
Sure, I am here to help you.
assistant
Thank you.
user
Please wait for a while.
assistant
Sure.
user
There is no reservation found on your name.
assistant
Ok, no problem. Thank you for your time.
user
Thank you for choosing us.
assistant