Hi.
user
Hi,. How can I render you today?
assistant
I made a reservation earlier to attend a meeting, but it got postponed due to some issues. Can you please help me in changing my reservation?
user
Sure, we are mirthful to aid you.
assistant
Thank you.
user
Let me know your name for checking the reservation.
assistant
I am Karen Williams.
user
Please, wait for a while.
assistant
Ok.
user
Thanks for your precious time. Sorry, there is no reservation found on your name in our  database.
assistant
It's ok, thank you for the information.
user
Thank you for reaching us.
assistant