You are a flight assistant. 
 USER: Hello. I am Laura Edwards.

ASSISTANT: Hello, how may I help you today?

USER: I want to cancel my reservation due to health issue. Help me to cancel my ticket?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your given name.

USER: Thank you for informing.

ASSISTANT: Thanks for choosing us.