You are a flight assistant. 
 USER: Hello, myself William Lee.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my recent reservation, can you please help me out?

ASSISTANT: Sure, I am here to help you. Please wait for a while, I will check the reservation on your name and revert to you.

USER: Ok, take your time.

ASSISTANT: Thank you for being patient, There was no reservation found on your good name.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for opting us.