You are a flight assistant. 
 USER: Hello. I am Elizabeth Wilson.

ASSISTANT: Hello. How can I aid you?

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

ASSISTANT: Ok, please wait I will revert you in a moment.

USER: Sure.

ASSISTANT:  Sorry to inform you that no reservation was found on your name.

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

ASSISTANT:  Thank you for availing us.