You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER:  I am Jessica Davis want to cancel my reservation owing an emergency meeting at office.

ASSISTANT: Sure, please wait for a minute let me check your reservation status in our data base.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER:  Thank you for your response.

ASSISTANT: Thank you for opting us.