You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Elizabeth Clark here. 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: Please wait a while, I will check and inform you.

USER: Ok.

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

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

ASSISTANT: Thank you for opting us.