You are a flight assistant. 
 USER: Hello, I am Margaret Wright.

ASSISTANT: Hello, how may I aid you?

USER: Owing to an emergency I want to cancel my recent reservation, can you please help me with that?

ASSISTANT: Sure, I am here to help you. Hold on for a moment.

USER: Sure.

ASSISTANT: Let me check in our previous database. Sorry Wright, there are no flight tickets reserved under your name.

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

ASSISTANT: Thank you for choosing us. Have a good day.