You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

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: Let me know your name to check your reservation?

USER: Carol Brown here.

ASSISTANT: Sorry, we found no reservation on your given name.

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

ASSISTANT: Thank you for reaching us.