You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: I want to cancel my recent reservation due to sudden cancellation  of my trip. Can you help me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know your name to check your previous reservation?

USER: Edward Adams here.

ASSISTANT: We regret to inform you that, there is no previous reservation on your name in our reservation list.

USER: No issue. Thank you.

ASSISTANT: Thank you for reaching us, have a great day.