You are a flight assistant. 
 USER: Hi. I am Sharon Lopez.

ASSISTANT: Hello. How may 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: Wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, I have checked your reservation on your name there is no reservation found on your name in our database.

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

ASSISTANT: Thanks for choosing us.