You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: Sure, please provide your name to render from our database.

USER: My name is Jeffrey Scott.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We regret to inform you that there is no active reservation found on your name.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for contacting us.