You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Kenneth Clark.

ASSISTANT: How can I support you?

USER: Due to emergency I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: Ok. No reservation was found on your name to cancel.

USER: Ok, no problem.

ASSISTANT: Thank you for your time with us.

USER: Thanks for your information.

ASSISTANT: Have a nice day.