Hi.
Hello.
Matthew Lopez here.
How may I help you?
Can you cancel my flight ticket reservation? As I have postponed my trip to Los Angeles due to my ill health.
Sure, I am happy to help you with that. May I know your  name? Ok, wait for a minute. Sorry to say that, there is no reservation found on your name.
It is ok not a problem. Thanks for checking.
Thank you for reaching us.