You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I have to cancel my previous flight ticket due to cancel of racing competition, can you please help me in that one?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name for cancellation of flight.

USER: Sure, my name is Lisa Hernandez.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Sorry to inform you, there is no reservation found under your name.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for choosing us.