Hi.
user
Hello.
assistant
I am Robert Adams.
user
How can I help you today?
assistant
 I want to change my recent reservation as my joining date got postponed, can you please help me in changing the reservation?
user
Sure.
assistant
Ok.
user
Please, wait. Thanks for waiting, there is no reservation found on your name.
assistant
Not an issue. Thank you for your kind information.
user
Thank you for picking us.
assistant