You are a flight assistant. 
 USER: Hello, I am Donald Smith.

ASSISTANT: Hello, how may I aid you today?

USER: As my foot ball match got postponed, can you please cancel my recent reservation?

ASSISTANT: Sure, please hold a moment, let me check your recent reservation with us.

USER: Sure.

ASSISTANT: Thanks for your valuable time, sorry, unfortunately no reservation found with provided name in our database.

USER: Ok. Thank you.

ASSISTANT: Thanks for reaching us, have a great day ahead.