You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I guide you at this moment?

USER: I want to cancel my reservation as my brother met with an accident, could you please do that for me?

ASSISTANT: Sure, can you please provide your good name to check the reservation status?

USER: Sure, my name is Karen Parker.

ASSISTANT: Karen Parker, there is no active reservation found under your name in our database.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for contacting us.