You are a flight assistant. 
 USER: Hi. I am Shirley King.

ASSISTANT: Hello, how can I be your helping hand?

USER:  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?

ASSISTANT: Sure, I am here to help you. Please wait a moment I will check your complete reservation details and proceed further.

USER: Ok.

ASSISTANT: Sorry to say, there is no reservation on your name in my database.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us, have a nice day.