Hello.
user
Hello, how can I best support you now?
assistant
 I would like to cancel my flight reservation as my trip got postponed, can you please help me?
user
Sure, we are glad to assist you in that.
assistant
Thank you.
user
May I know your name?
assistant
I am Gregory Phillips.
user
Sorry Gregory Phillips, we haven't found any previous flight reservation based on your name.
assistant
That's ok, thank you for checking.
user
Thanks for reaching us.
assistant