HI.
user
Hello.
assistant
I am Barbara Martinez.
user
How may I assist you?
assistant
 I need to cancel my reservation for a client meeting but I have got a sudden call from my friend that one of my friend got met with an accident so I feel to cancel my reservation. Can you please help me out?
user
Sure, I will help you with that. Wait for a moment please. I have searched online but I could not find your flight reservation to cancel it.
assistant
That's ok, than you for your information and effort.
user
Thank you.
assistant