You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gregory Hall.

ASSISTANT: How can I help you now?

USER: I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Sure, I am here to help you. Please, wait for a while.

USER: Sure.

ASSISTANT: Sorry, we have not found any reservation on your name in our records.

USER: Ok, no problem. Thank you for your time.

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