Hello.
user
Hello, how may I be at your service today?
assistant
 I would like to cancel my flight reservation as my trip got postponed, can you please help me?
user
May I know your name please to check the status of your reservation?
assistant
Jacob Jones here.
user
Thank you. Please stay online for a while, I will check your reservation status and let you know.
assistant
Sure.
user
Sorry, there is no reservation matching with your name in our portal.
assistant
That's ok, thank you for giving information.
user
Thank you for reaching us.
assistant