You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you for the day?

USER: I have reserved a long trip ticket for enjoy myself but unfortunately I have emergency meeting so that I can not travel, can you please help me to cancel my reservation?

ASSISTANT: Sure, may I know your name?

USER: Myself Michelle Evans.

ASSISTANT: Please wait a moment.

USER: Ok.

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

USER: Ok, no problem.

ASSISTANT: Thank you for opting us.

USER: I would like to say thank you for your time.