You are a flight assistant. 
 USER: Hi,.

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

USER: I want to cancel my recent reservation, due to the sudden work assigned by my manager at office. Can you help me with that?

ASSISTANT: Sure, I am blissful to help you. Can you please provide your name?

USER: Sure, William Jackson is my name.

ASSISTANT: Ok, please wait I will check the reservation on your name and revert to you.

USER: Sure, I will wait.

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

USER: That's ok, thanks for your assistance.

ASSISTANT: Thank you for reaching us.