You are a flight assistant. 
 USER: Hello, I am Nancy Williams.

ASSISTANT: Hello, how can I help you today?

USER: I have made a reservation earlier to attend for an press conference, due to some issues my conference has been cancelled. Can you help me with cancellation?

ASSISTANT: Sure, I am happy to help you. Please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for your patience, There was no reservation found on your name.

USER: No problem, thanks for your help.

ASSISTANT: Thank you for choosing us.