You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you 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, may I know your name to check for the previous reservation?

USER: Frank Thompson here.

ASSISTANT: There is no reservation found under your name in our data base.

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

ASSISTANT: Thank you for contacting us.