You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be at your service 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 can cancel your reservation right now. Before that I need to know your good name please?

USER: Margaret Thompson here.

ASSISTANT: Sorry, there is no reservation matching with your name in our portal.

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

ASSISTANT: Thank you for choosing us.