You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Owing to an emergency I had to request for this cancel reservation. Can you please help me with this?

ASSISTANT: Sure, may I know your name please?

USER: Sure, I am Jonathan Clark.

ASSISTANT: Sorry Jonathan, we don't find any reservation on your name.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for contacting us.