Hi.
user
Hello. How can I aid you?
assistant
I want to cancel my reservation as my conference got cancelled. Please help me with it.
user
 Sure, May I know your name?
assistant
I am Debra Campbell.
user
Please wait a while.
assistant
Ok.
user
Thanks for being waiting. We didn't found any reservation by this name.
assistant
Ok, no problem. Thank you for your response.
user
Thank you  for choosing us.
assistant