Hello.
user
Hello. How may I be your helping hand today?
assistant
I am Joshua Nelson, want to alter my recent reservation due to some personal issues. Please help me out with that.
user
Sure, please wait for few minutes, let me check with your recent reservation status.
assistant
Ok, take your time.
user
There is no recent reservation found on  your name in our records.
assistant
It's ok, thank you for your help.
user
Thank you for reaching us.
assistant