You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

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 happy to help you. Can you please let me know your good name?

USER: I am Donald Roberts.

ASSISTANT: Sorry, there is no active reservation on your name in our records.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.