Hello.
user
Hello, how can I assist you for the day?
assistant
I have made a reservation earlier to reach Los Angeles, but due to some issues I need to change my reservation, so please help me.
user
Sure, I am here to help you.
assistant
Thank you.
user
May, I know your good name?
assistant
Sure, I am Dennis Miller.
user
Sorry, we found no reservation on your given name.
assistant
No worries, thank you.
user
Thank you for reaching us.
assistant