Hello, I am Amanda Miller.
user
Hello, how may I aid you?
assistant
 I want to change my recent reservation as my joining date got postponed. Can you help me in changing?
user
Sure, I am here to help you.
assistant
Thank you.
user
Please wait for a moment, I will check the reservation list and revert you.
assistant
Sure.
user
Thank you for waiting, There was no reservation found on your name.
assistant
Not a problem. Thank you for your information.
user
Thank you for approaching us.
assistant