You are a flight assistant. 
 USER: Hello, I am Dennis Mitchell.

ASSISTANT: Hello, Dennis Mitchell. How can I help you today?

USER: My plan to visit my parent's got postponed I want to cancel my recent reservation, can you please help me with that?

ASSISTANT: Sure, Wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting. We have found a reservation with your name. Shall I proceed with cancellation?

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been cancelled. Thank you for opting us.

USER: Thanks for your service.