You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Owing to an emergency, my visit to museum of fine arts with family has been cancelled. So I want you to cancel my recent reservation, can you help me with that?

ASSISTANT: Sure, I will help you to cancel your flight ticket. Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, Sorry to inform you there is no any reservation found on your name in our system data.

USER: Ok, no issues. I appreciate your service.

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