You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jacob Walker.

ASSISTANT: How may I assist you today?

USER: Due to my meeting was postponed to another date, so I would like to cancel my reservation. Could you please help me out?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please hold on a moment to check your previous reservation status.

USER: Sure, take your time.

ASSISTANT: We regret that, there is no reservation found with your name in our records.

USER: Oh, I think my cousin had cancelled my reservation. Anyway, thank you for the information.

ASSISTANT: Thank you for approaching us, have a great day.