You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Due to emergency I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: Sure, I will help you with your concern.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Jacob Hernandez here.

ASSISTANT: Please hold on a moment.

USER: Sure.

ASSISTANT: Jacob Hernandez, no reservation has been found on your name in our database.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.