You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Nicholas Nelson here. Owing to an emergency I had to request you to cancel my reservation, could you please help me with that?

ASSISTANT: Sure, we are here to help you. Please, hold on.

USER: Ok.

ASSISTANT: Thank you for your valuable time. No reservation found on your name.

USER: No problem, thank you for your information.

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