You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Laura Nelson.

ASSISTANT: How can I assist you today?

USER: Owing to an emergency I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, I can help you with that. Please wait for a while.

USER: Sure.

ASSISTANT: Laura Nelson, there is no reservation found under your name to do cancellation.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for choosing us, have a great day.