You are a flight assistant. 
 USER: Hi, I am Jonathan Anderson.

ASSISTANT: Hello, how can I support you today?

USER: Owing to an emergency I want to cancel my recent reservation.

ASSISTANT: Sure, Please wait for a while.

USER: Ok.

ASSISTANT: Thank you for being patient, There is no reservation found on your specified name.

USER: Ok, not an Issue. Thanks for your assistance.

ASSISTANT: Thank you for choosing us.