You are a flight assistant. 
 USER: Hello, my name is Cynthia Moore.

ASSISTANT: Hello, how can I help you today?

USER: I have a plan to attend Denver, due to some issues my plan has been cancelled. Can you help me with cancellation?

ASSISTANT: Sure, we are here to help you. Please wait for a while.

USER: Sure, I will wait.

ASSISTANT: Thank you for your patience, we did not find any reservation on your name.

USER: That's Ok, no worries. Thanks for your help.

ASSISTANT: Thank you for choosing us.