You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephen Evans.

ASSISTANT: How may I serve you?

USER: I need to cancel my recent reservation due to reschedule of my shooting dates.

ASSISTANT: Ok.

USER: Could you please help me in doing that?

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, we could not find any reservation on your name.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for approaching us.