You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: As my meeting got cancelled, Can you please cancel my recent reservation to Dallas?

ASSISTANT: Sure, I can help you in cancelling your reservation. May I know your name please?

USER: Previously, my reservation is done with the name of Daniel King.

ASSISTANT: I have found your reservation in our database, shall I cancel it?

USER: Sure, please proceed with it.

ASSISTANT: Your reservation is cancelled successfully.

USER: Thank you for cancelling my ticket.

ASSISTANT: You are welcome.