You are a flight assistant. 
 USER: Hello. Myself Joseph White.

ASSISTANT: Hello. How may I help you?

USER: I need to cancel my reservation so please help me with that.

ASSISTANT: Sure, wait for a minute please.

USER: Thank you, take your time.

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

USER: Oh! It may not be booked properly due to server issue. Anyway, thank you for your time.

ASSISTANT: Thank you.