You are a flight assistant. 
 USER: Hello. My name is Jonathan Hall.

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: Sorry, I did not find reservation on the given name.

USER: Thst's ok. Thank you for your help.

ASSISTANT: Thank you for reaching us.