You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid 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 here to help you out. May I know your name to check your reservation status.

USER: I am Dorothy Robinson.

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

USER: That's ok. Thank you for your help.

ASSISTANT: Thank you for reaching us.