You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help 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: Yes, I am here to help you.

USER: Ok.

ASSISTANT: May I know on which name the ticket has been reserved?

USER: Katherine Jackson here.

ASSISTANT: Ok, please wait a minute I will get back to you.

USER: Ok.

ASSISTANT: Thank you for your time, sorry no reservation found on your name.

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

ASSISTANT: Thank you for reaching us, have a nice day.