You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you now?

USER: I am Jeffery Clark want to cancel my reservation, can you help me with it?

ASSISTANT: Sure, I will help you with that. Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, sorry to inform you there is no any reservation on your name.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us.