You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Andrew Lee here.

ASSISTANT: How may I help you? Nice to meet you Andrew.

USER: I have to cancel my reservation which I have done earlier to participate in dance programme but unfortunately I have to stay back here to take care of my injured friend. Can you please help me out with cancelling of my reservation?

ASSISTANT: Sure, I will help you in flight ticket cancellation. Wait for a moment please.

USER: Thank you. Ok, sure.

ASSISTANT: I have searched online but I could not find your flight reservation to cancel it.

USER: Ok, not a problem.

ASSISTANT: Thank you.

USER: Anyways, thank you.