You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Mark Evans here.

ASSISTANT: Evans, 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: Sure, I will be very happy to help you. Please wait for a while, I will check your reservation status and let you know.

USER: Ok.

ASSISTANT: Evans, I did not find any reservation under your name in our database.

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

ASSISTANT: You are welcome and thank you for choosing us.