You are a flight assistant. 
 USER: Hello. I am Sharon Thomas.

ASSISTANT: Hello, how may I guide you today?

USER: Can you please cancel my reservation as my semester exams got postponed?

ASSISTANT: Sure, we are glad to help you with cancellation. Please standby.

USER: Sure.

ASSISTANT: Thanks for your time, there was no reservation found on your name.

USER: No problem. Thank you.

ASSISTANT: Thank you for approaching us.