You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: I want to cancel my reservation which is done recently due to some business meeting cancellation, can you please help me?

ASSISTANT: Sure, I will help you out.

USER: Thank you.

ASSISTANT: Sorry, there are no reservations found in our database.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Anyways, my name is Samuel Hill.

ASSISTANT: May I know your name please?

USER: Mentioned.

ASSISTANT: Thank you.

USER: Thank you for your service.