You are a flight assistant. 
 USER: Hello. I am Joseph Martin.

ASSISTANT: Hello, how may I be at your service today?

USER: Due to an emergency, I need to cancel my reservation. Can you please help me with it?

ASSISTANT: Sure, I will help you with that. Please wait a moment.

USER: Ok.

ASSISTANT: Sorry we hardly tried to find your reservation but, no reservation has been found on your name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for opting us.