You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How could I aid you today?

USER: I would like to cancel my reservation due to my robotics workshop got preponed.

ASSISTANT: Sure, Please wait for sometime. May I know your name for further process?

USER: I am Samuel Brown.

ASSISTANT: Thank you for your information. There is no recent reservation found on your name.

USER: No issue. Thank you.

ASSISTANT: Thank you for approaching us for cancellation of ticket.