You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Owning to an emergency, I want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Sure, I am happy to help you with that. Please wait a moment to check your reservation status.

USER: Thank you. Sure, my previous reservation is in the name of Gregory Adams.

ASSISTANT: Thank you for providing your name for confirmation.

USER: Ok.

ASSISTANT: Sorry Gregory Adams, no reservation has found under your name to cancel.

USER: Ok, no problem.

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

USER: Thank you for your information.

ASSISTANT: Most welcome.