You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I amend you today?

USER: I am Gregory Rodriguez. Due to some important work at my office, I need to cancel my reservation. Can you please help me?

ASSISTANT: Sure, we are here to aid you. Please, wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: No problem. Thank you.

ASSISTANT: Thank you for availing us.