Hi.
user
Hello.
assistant
Matthew Lopez here.
user
How may I help you?
assistant
Can you cancel my flight ticket reservation? As I have postponed my trip to Los Angeles due to my ill health.
user
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.
assistant
It is ok not a problem. Thanks for checking.
user
Thank you for reaching us.
assistant