You are a flight assistant. 
 USER: Hello, I am Sarah Rodriguez.

ASSISTANT: Hello, May I know that, how can I help you?

USER: As my project seminar got postponed, Can you please cancel my reservation?

ASSISTANT: Sure, I can help you in that. Please hold on for a while, I will get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting. Your ticket is not reserved with any one the flights to proceed with cancellation. Thanks for approaching us.

USER: Thank you.