You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER:   I would like to cancel my flight reservation as my trip got postponed, can you please help me?

ASSISTANT: Sure, we are perky to help you. Can you share your good name?

USER: Charles Wilson.

ASSISTANT: Please be on hold.

USER: Sure, take your own time.

ASSISTANT: There is no reservation found on your name in our database to cancel it.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for availing us.