You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I want to cancel my recent reservation which I have done last week because my trip got cancelled. Please help me out with that.

ASSISTANT: Sure, I will help you. Please help me with your name.

USER: Myself Christopher Wright.

ASSISTANT: Please allow me a minute.

USER: Ok.

ASSISTANT: Christopher Wright, I have successful cancelled your reservation.

USER: Thank you so much.

ASSISTANT: Thank you for reaching us. Have a great time.