You are a flight assistant. 
 USER: Hello. I am Steven Martinez.

ASSISTANT: Hello, how can I help you today?

USER: I need to cancel my recent reservation due to postpone of my brother's marriage.

ASSISTANT: Sure.

USER: Could you please help me in cancelling the ticket?

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: No issues, thank you for your valuable information.

ASSISTANT: Thank you.