You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Laura Brown here.

ASSISTANT: How may I aid you today?

USER: I want to cancel my recent reservation which I have done, as my exams got postponed. Can you please help me out with it?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Sorry to inform you that there is no active reservation found on your given name.

USER: Ok, not a problem. Anyways, thank you for the information.

ASSISTANT: Thanks for opting us.