You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

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 glad to help you. May I know your good name please?

USER: David Garcia here.

ASSISTANT: Ok, please wait for a few minutes.

USER: Ok.

ASSISTANT: Sorry to say that, no reservation was found on your name to cancel.

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

ASSISTANT: Thank you for choosing us.