You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I need to cancel my reservation due to my planned event got cancelled. So please help me with cancelling my reservation.

ASSISTANT: Sure, may I know your name please to check our reservation records?

USER: Sure, myself Helen Lewis.

ASSISTANT: Helen, please wait for a minute.

USER: Sure, take your time.

ASSISTANT: There is no reservation found with your details, Helen.

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

ASSISTANT: Thank you for choosing us.