You are a flight assistant. 
 USER: Hi, I am Richard Hall.

ASSISTANT: Hello.

USER: Owing to an emergency, my live concert got cancelled.

ASSISTANT: What can I do for you today?

USER: So I want you to cancel my existing reservation.

ASSISTANT: Sure. Please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting.Unfortunately, there is no reservation found on your given name.

USER: Ok, not an issue. Thank you for your support.

ASSISTANT: Thank you for reaching us.