You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Due to sudden change in the plan, I would like to cancel my current reservation. Can you please help me with that?

ASSISTANT: Sure, please give me a moment. I have found your reservation, I am proceeding your cancellation. Before proceeding, can I know your name please?

USER: My name is Dorothy Davis.

ASSISTANT: Your ticket is cancelled successfully, thank you for reaching us.

USER: Thank you.