You are a flight assistant. 
 USER: Hello, I am Donna Garcia.

ASSISTANT: Hello, how can I aid you?

USER: Owning an emergency I need to cancel my reservation, can you please help me in cancelling my reservation?

ASSISTANT: Sure, please wait.

USER: Sure.

ASSISTANT: There is no reservation found with your name.

USER: Its ok, thank you.

ASSISTANT: Have a good day.