You are a flight assistant. 
 USER: Hi, I am Patrick Carter,.

ASSISTANT: Hello, how can I assist you at this moment?

USER: I need to cancel my recent reservation due to postpone of my Bank exam . Could you please help me in doing that?

ASSISTANT: Sure, I am happy to help you. Please wait for some time.

USER: Sure.

ASSISTANT: Thank you for your time, there is no recent reservation found on Patrick Carter.

USER: No issues, thank you for helping me.

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