You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Karen Young. 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 will help you. Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry Young, there is no reservation found under your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for contacting us.