You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I need to cancel my recent reservation due to some issues, can you help me in doing that?

ASSISTANT: Sure, I am here to help you out. May I know your name please?

USER: Dennis Allen here.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Dennis Allen, we found your reservation and cancelled it successfully.

USER: Thank you.

ASSISTANT: Thank you for choosing us.