You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,how can I aid you?

USER: Can you please cancel my recent reservation? As my planned trip has been cancelled.

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

USER: Sure, my name is David Davis.

ASSISTANT: Your reservation is found and I cancelled it successfully.

USER: Thank you so much for your help.

ASSISTANT: Thank you for choosing us.