You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Robert Martinez.

ASSISTANT: How can I be your helping hand?

USER: I would like to cancel my recent reservation due to postpone my business meeting. Can you help me in this?

ASSISTANT: Sure, please hold on.

USER: Ok.

ASSISTANT: There is no reservation found in your name to cancel.

USER: Not a problem, thank you.

ASSISTANT: Thanks for contacting us.