You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: Catherine Smith here.

ASSISTANT: Ok.

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. Please wait for a while.

USER: Ok.

ASSISTANT: Sorry Catherine Smith, no reservation found on your name in our reservation list.

USER: No worries, thank you.

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