You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jack Edwards.

ASSISTANT: How can I help you at this moment?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Sure, I am glad to help you with that. Please wait for a minute.

USER: Sure.

ASSISTANT: We are regret to inform you that, there is no reservation found on your name in our database.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.