You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Due to emergency I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: Sure, may I know your name to check your reservation from our database?

USER: Kimberly Thompson here.

ASSISTANT: We regret to inform you that there is no active reservation found on your name to cancel.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for contacting us.