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

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, please wait a moment I'll check the details of your reservation.

USER: Ok.

ASSISTANT: Sorry Laura, in my database I didn't found any details regarding your reservation.

USER: No problem. Thanks for your information.

ASSISTANT: Thanks for reaching us. Have a nice day.