Hi.
user
Hello, how can I serve you today?
assistant
I am Gregory Carter, can you please help me in  changing my reservation as my plan to visit my grandmother's home got postponed?
user
Sure, wait for a moment.
assistant
Ok.
user
Thanks for waiting, sorry to say that, no reservation was found with your good name.
assistant
It's ok.
user
Thanks for connecting with us.
assistant
Thank you for the information.
user